

<!--XBRL Document Created with Wdesk from Workiva-->
<!-- -->
<link:linkbase xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd" xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
  <link:roleRef roleURI="http://liquidityservices.com/role/A401KBenefitPlan" xlink:href="lqdt-20180930.xsd#A401KBenefitPlan" xlink:type="simple" />
  <link:roleRef roleURI="http://liquidityservices.com/role/A401KBenefitPlanDetails" xlink:href="lqdt-20180930.xsd#A401KBenefitPlanDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://liquidityservices.com/role/Acquisition" xlink:href="lqdt-20180930.xsd#Acquisition" xlink:type="simple" />
  <link:roleRef roleURI="http://liquidityservices.com/role/AcquisitionNarrativeDetails" xlink:href="lqdt-20180930.xsd#AcquisitionNarrativeDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://liquidityservices.com/role/AcquisitionProFormaDetails" xlink:href="lqdt-20180930.xsd#AcquisitionProFormaDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://liquidityservices.com/role/AcquisitionPurchasePriceAllocationDetails" xlink:href="lqdt-20180930.xsd#AcquisitionPurchasePriceAllocationDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://liquidityservices.com/role/AcquisitionTables" xlink:href="lqdt-20180930.xsd#AcquisitionTables" xlink:type="simple" />
  <link:roleRef roleURI="http://liquidityservices.com/role/BusinessRealignmentExpenses" xlink:href="lqdt-20180930.xsd#BusinessRealignmentExpenses" xlink:type="simple" />
  <link:roleRef roleURI="http://liquidityservices.com/role/BusinessRealignmentExpensesActivityInLiabilityForBusinessRealignmentInitiativesDetails" xlink:href="lqdt-20180930.xsd#BusinessRealignmentExpensesActivityInLiabilityForBusinessRealignmentInitiativesDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://liquidityservices.com/role/BusinessRealignmentExpensesNarrativeDetails" xlink:href="lqdt-20180930.xsd#BusinessRealignmentExpensesNarrativeDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://liquidityservices.com/role/BusinessRealignmentExpensesTables" xlink:href="lqdt-20180930.xsd#BusinessRealignmentExpensesTables" xlink:type="simple" />
  <link:roleRef roleURI="http://liquidityservices.com/role/Commitments" xlink:href="lqdt-20180930.xsd#Commitments" xlink:type="simple" />
  <link:roleRef roleURI="http://liquidityservices.com/role/CommitmentsDetails" xlink:href="lqdt-20180930.xsd#CommitmentsDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://liquidityservices.com/role/CommitmentsTables" xlink:href="lqdt-20180930.xsd#CommitmentsTables" xlink:type="simple" />
  <link:roleRef roleURI="http://liquidityservices.com/role/ConsolidatedBalanceSheets" xlink:href="lqdt-20180930.xsd#ConsolidatedBalanceSheets" xlink:type="simple" />
  <link:roleRef roleURI="http://liquidityservices.com/role/ConsolidatedBalanceSheetsParenthetical" xlink:href="lqdt-20180930.xsd#ConsolidatedBalanceSheetsParenthetical" xlink:type="simple" />
  <link:roleRef roleURI="http://liquidityservices.com/role/ConsolidatedStatementsOfCashFlows" xlink:href="lqdt-20180930.xsd#ConsolidatedStatementsOfCashFlows" xlink:type="simple" />
  <link:roleRef roleURI="http://liquidityservices.com/role/ConsolidatedStatementsOfComprehensiveLossIncome" xlink:href="lqdt-20180930.xsd#ConsolidatedStatementsOfComprehensiveLossIncome" xlink:type="simple" />
  <link:roleRef roleURI="http://liquidityservices.com/role/ConsolidatedStatementsOfOperations" xlink:href="lqdt-20180930.xsd#ConsolidatedStatementsOfOperations" xlink:type="simple" />
  <link:roleRef roleURI="http://liquidityservices.com/role/ConsolidatedStatementsOfStockholdersEquity" xlink:href="lqdt-20180930.xsd#ConsolidatedStatementsOfStockholdersEquity" xlink:type="simple" />
  <link:roleRef roleURI="http://liquidityservices.com/role/DefinedBenefitPensionPlan" xlink:href="lqdt-20180930.xsd#DefinedBenefitPensionPlan" xlink:type="simple" />
  <link:roleRef roleURI="http://liquidityservices.com/role/DefinedBenefitPensionPlanFairValueEstimatesDetails" xlink:href="lqdt-20180930.xsd#DefinedBenefitPensionPlanFairValueEstimatesDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://liquidityservices.com/role/DefinedBenefitPensionPlanNarrativeDetails" xlink:href="lqdt-20180930.xsd#DefinedBenefitPensionPlanNarrativeDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://liquidityservices.com/role/DefinedBenefitPensionPlanTables" xlink:href="lqdt-20180930.xsd#DefinedBenefitPensionPlanTables" xlink:type="simple" />
  <link:roleRef roleURI="http://liquidityservices.com/role/DocumentAndEntityInformation" xlink:href="lqdt-20180930.xsd#DocumentAndEntityInformation" xlink:type="simple" />
  <link:roleRef roleURI="http://liquidityservices.com/role/EquityTransactions" xlink:href="lqdt-20180930.xsd#EquityTransactions" xlink:type="simple" />
  <link:roleRef roleURI="http://liquidityservices.com/role/EquityTransactions2006PlanDetails" xlink:href="lqdt-20180930.xsd#EquityTransactions2006PlanDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://liquidityservices.com/role/EquityTransactionsAcquisitionDetails" xlink:href="lqdt-20180930.xsd#EquityTransactionsAcquisitionDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://liquidityservices.com/role/EquityTransactionsEmployeeOptionsDetails" xlink:href="lqdt-20180930.xsd#EquityTransactionsEmployeeOptionsDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://liquidityservices.com/role/EquityTransactionsFairValueDetails" xlink:href="lqdt-20180930.xsd#EquityTransactionsFairValueDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://liquidityservices.com/role/EquityTransactionsOptionsDetails" xlink:href="lqdt-20180930.xsd#EquityTransactionsOptionsDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://liquidityservices.com/role/EquityTransactionsRepurchaseProgramDetails" xlink:href="lqdt-20180930.xsd#EquityTransactionsRepurchaseProgramDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://liquidityservices.com/role/EquityTransactionsRestrictedSharesDetails" xlink:href="lqdt-20180930.xsd#EquityTransactionsRestrictedSharesDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://liquidityservices.com/role/EquityTransactionsTables" xlink:href="lqdt-20180930.xsd#EquityTransactionsTables" xlink:type="simple" />
  <link:roleRef roleURI="http://liquidityservices.com/role/FairValueMeasurement" xlink:href="lqdt-20180930.xsd#FairValueMeasurement" xlink:type="simple" />
  <link:roleRef roleURI="http://liquidityservices.com/role/FairValueMeasurementChangesInLevel3AssetsDetails" xlink:href="lqdt-20180930.xsd#FairValueMeasurementChangesInLevel3AssetsDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://liquidityservices.com/role/FairValueMeasurementNarrativeDetails" xlink:href="lqdt-20180930.xsd#FairValueMeasurementNarrativeDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://liquidityservices.com/role/FairValueMeasurementTables" xlink:href="lqdt-20180930.xsd#FairValueMeasurementTables" xlink:type="simple" />
  <link:roleRef roleURI="http://liquidityservices.com/role/Goodwill" xlink:href="lqdt-20180930.xsd#Goodwill" xlink:type="simple" />
  <link:roleRef roleURI="http://liquidityservices.com/role/GoodwillNarrativeDetails" xlink:href="lqdt-20180930.xsd#GoodwillNarrativeDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://liquidityservices.com/role/GoodwillScheduleOfGoodwillDetails" xlink:href="lqdt-20180930.xsd#GoodwillScheduleOfGoodwillDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://liquidityservices.com/role/GoodwillTables" xlink:href="lqdt-20180930.xsd#GoodwillTables" xlink:type="simple" />
  <link:roleRef roleURI="http://liquidityservices.com/role/Guarantees" xlink:href="lqdt-20180930.xsd#Guarantees" xlink:type="simple" />
  <link:roleRef roleURI="http://liquidityservices.com/role/GuaranteesDetails" xlink:href="lqdt-20180930.xsd#GuaranteesDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://liquidityservices.com/role/IncomeTaxes" xlink:href="lqdt-20180930.xsd#IncomeTaxes" xlink:type="simple" />
  <link:roleRef roleURI="http://liquidityservices.com/role/IncomeTaxesCarryforwardsDetails" xlink:href="lqdt-20180930.xsd#IncomeTaxesCarryforwardsDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://liquidityservices.com/role/IncomeTaxesDeferredTaxAssetsDetails" xlink:href="lqdt-20180930.xsd#IncomeTaxesDeferredTaxAssetsDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://liquidityservices.com/role/IncomeTaxesProvisionDetails" xlink:href="lqdt-20180930.xsd#IncomeTaxesProvisionDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://liquidityservices.com/role/IncomeTaxesReconciliationDetails" xlink:href="lqdt-20180930.xsd#IncomeTaxesReconciliationDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://liquidityservices.com/role/IncomeTaxesTables" xlink:href="lqdt-20180930.xsd#IncomeTaxesTables" xlink:type="simple" />
  <link:roleRef roleURI="http://liquidityservices.com/role/IntangibleAssets" xlink:href="lqdt-20180930.xsd#IntangibleAssets" xlink:type="simple" />
  <link:roleRef roleURI="http://liquidityservices.com/role/IntangibleAssetsFutureAmortizationDetails" xlink:href="lqdt-20180930.xsd#IntangibleAssetsFutureAmortizationDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://liquidityservices.com/role/IntangibleAssetsNarrativeDetails" xlink:href="lqdt-20180930.xsd#IntangibleAssetsNarrativeDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://liquidityservices.com/role/IntangibleAssetsTables" xlink:href="lqdt-20180930.xsd#IntangibleAssetsTables" xlink:type="simple" />
  <link:roleRef roleURI="http://liquidityservices.com/role/LegalProceedings" xlink:href="lqdt-20180930.xsd#LegalProceedings" xlink:type="simple" />
  <link:roleRef roleURI="http://liquidityservices.com/role/LegalProceedingsDetails" xlink:href="lqdt-20180930.xsd#LegalProceedingsDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://liquidityservices.com/role/Organization" xlink:href="lqdt-20180930.xsd#Organization" xlink:type="simple" />
  <link:roleRef roleURI="http://liquidityservices.com/role/OrganizationDetails" xlink:href="lqdt-20180930.xsd#OrganizationDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://liquidityservices.com/role/PropertyAndEquipment" xlink:href="lqdt-20180930.xsd#PropertyAndEquipment" xlink:type="simple" />
  <link:roleRef roleURI="http://liquidityservices.com/role/PropertyAndEquipmentDetails" xlink:href="lqdt-20180930.xsd#PropertyAndEquipmentDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://liquidityservices.com/role/PropertyAndEquipmentTables" xlink:href="lqdt-20180930.xsd#PropertyAndEquipmentTables" xlink:type="simple" />
  <link:roleRef roleURI="http://liquidityservices.com/role/QuarterlyResultsUnaudited" xlink:href="lqdt-20180930.xsd#QuarterlyResultsUnaudited" xlink:type="simple" />
  <link:roleRef roleURI="http://liquidityservices.com/role/QuarterlyResultsUnauditedDetails" xlink:href="lqdt-20180930.xsd#QuarterlyResultsUnauditedDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://liquidityservices.com/role/QuarterlyResultsUnauditedTables" xlink:href="lqdt-20180930.xsd#QuarterlyResultsUnauditedTables" xlink:type="simple" />
  <link:roleRef roleURI="http://liquidityservices.com/role/ScheduleIiValuationAndQualifyingAccounts" xlink:href="lqdt-20180930.xsd#ScheduleIiValuationAndQualifyingAccounts" xlink:type="simple" />
  <link:roleRef roleURI="http://liquidityservices.com/role/ScheduleIiValuationAndQualifyingAccountsDetails" xlink:href="lqdt-20180930.xsd#ScheduleIiValuationAndQualifyingAccountsDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://liquidityservices.com/role/SegmentInformation" xlink:href="lqdt-20180930.xsd#SegmentInformation" xlink:type="simple" />
  <link:roleRef roleURI="http://liquidityservices.com/role/SegmentInformationNarrativeDetails" xlink:href="lqdt-20180930.xsd#SegmentInformationNarrativeDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://liquidityservices.com/role/SegmentInformationPropertyAndEquipmentAdditionsBySegmentDetails" xlink:href="lqdt-20180930.xsd#SegmentInformationPropertyAndEquipmentAdditionsBySegmentDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://liquidityservices.com/role/SegmentInformationReconciliationFromSegmentsToConsolidatedDetails" xlink:href="lqdt-20180930.xsd#SegmentInformationReconciliationFromSegmentsToConsolidatedDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://liquidityservices.com/role/SegmentInformationScheduleOfReportableSegmentsDetails" xlink:href="lqdt-20180930.xsd#SegmentInformationScheduleOfReportableSegmentsDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://liquidityservices.com/role/SegmentInformationScheduleOfRevenuesByCountryDetails" xlink:href="lqdt-20180930.xsd#SegmentInformationScheduleOfRevenuesByCountryDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://liquidityservices.com/role/SegmentInformationScheduleOfTotalLongLivedAssetsByGeographicalLocationDetails" xlink:href="lqdt-20180930.xsd#SegmentInformationScheduleOfTotalLongLivedAssetsByGeographicalLocationDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://liquidityservices.com/role/SegmentInformationScheduleOfTotalSegmentAssetsDetails" xlink:href="lqdt-20180930.xsd#SegmentInformationScheduleOfTotalSegmentAssetsDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://liquidityservices.com/role/SegmentInformationTables" xlink:href="lqdt-20180930.xsd#SegmentInformationTables" xlink:type="simple" />
  <link:roleRef roleURI="http://liquidityservices.com/role/SignificantContracts" xlink:href="lqdt-20180930.xsd#SignificantContracts" xlink:type="simple" />
  <link:roleRef roleURI="http://liquidityservices.com/role/SignificantContractsDetails" xlink:href="lqdt-20180930.xsd#SignificantContractsDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://liquidityservices.com/role/SummaryOfSignificantAccountingPolicies" xlink:href="lqdt-20180930.xsd#SummaryOfSignificantAccountingPolicies" xlink:type="simple" />
  <link:roleRef roleURI="http://liquidityservices.com/role/SummaryOfSignificantAccountingPoliciesAccountingStandardsAdoptedDetails" xlink:href="lqdt-20180930.xsd#SummaryOfSignificantAccountingPoliciesAccountingStandardsAdoptedDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://liquidityservices.com/role/SummaryOfSignificantAccountingPoliciesAdvertisingCostsAndAociDetails" xlink:href="lqdt-20180930.xsd#SummaryOfSignificantAccountingPoliciesAdvertisingCostsAndAociDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://liquidityservices.com/role/SummaryOfSignificantAccountingPoliciesConcentrationDetails" xlink:href="lqdt-20180930.xsd#SummaryOfSignificantAccountingPoliciesConcentrationDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://liquidityservices.com/role/SummaryOfSignificantAccountingPoliciesDeferredRevenueDetails" xlink:href="lqdt-20180930.xsd#SummaryOfSignificantAccountingPoliciesDeferredRevenueDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://liquidityservices.com/role/SummaryOfSignificantAccountingPoliciesEarningsPerShareDetails" xlink:href="lqdt-20180930.xsd#SummaryOfSignificantAccountingPoliciesEarningsPerShareDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://liquidityservices.com/role/SummaryOfSignificantAccountingPoliciesFairValueOfFinancialInstrumentsDetails" xlink:href="lqdt-20180930.xsd#SummaryOfSignificantAccountingPoliciesFairValueOfFinancialInstrumentsDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://liquidityservices.com/role/SummaryOfSignificantAccountingPoliciesIntangibleAssetsAndImpairmentOfLongLivedAssetsDetails" xlink:href="lqdt-20180930.xsd#SummaryOfSignificantAccountingPoliciesIntangibleAssetsAndImpairmentOfLongLivedAssetsDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://liquidityservices.com/role/SummaryOfSignificantAccountingPoliciesInventoryDetails" xlink:href="lqdt-20180930.xsd#SummaryOfSignificantAccountingPoliciesInventoryDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://liquidityservices.com/role/SummaryOfSignificantAccountingPoliciesOtherAssetsDetails" xlink:href="lqdt-20180930.xsd#SummaryOfSignificantAccountingPoliciesOtherAssetsDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://liquidityservices.com/role/SummaryOfSignificantAccountingPoliciesPolicies" xlink:href="lqdt-20180930.xsd#SummaryOfSignificantAccountingPoliciesPolicies" xlink:type="simple" />
  <link:roleRef roleURI="http://liquidityservices.com/role/SummaryOfSignificantAccountingPoliciesPpeDetails" xlink:href="lqdt-20180930.xsd#SummaryOfSignificantAccountingPoliciesPpeDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://liquidityservices.com/role/SummaryOfSignificantAccountingPoliciesShortTermInvestmentsDetails" xlink:href="lqdt-20180930.xsd#SummaryOfSignificantAccountingPoliciesShortTermInvestmentsDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://liquidityservices.com/role/SummaryOfSignificantAccountingPoliciesStockBasedCompensationDetails" xlink:href="lqdt-20180930.xsd#SummaryOfSignificantAccountingPoliciesStockBasedCompensationDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://liquidityservices.com/role/SummaryOfSignificantAccountingPoliciesTables" xlink:href="lqdt-20180930.xsd#SummaryOfSignificantAccountingPoliciesTables" xlink:type="simple" />
  <link:roleRef roleURI="http://www.xbrl.org/2009/role/negatedLabel" xlink:href="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedLabel" xlink:type="simple" />
  <link:roleRef roleURI="http://www.xbrl.org/2009/role/negatedNetLabel" xlink:href="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedNetLabel" xlink:type="simple" />
  <link:roleRef roleURI="http://www.xbrl.org/2009/role/negatedPeriodEndLabel" xlink:href="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedPeriodEndLabel" xlink:type="simple" />
  <link:roleRef roleURI="http://www.xbrl.org/2009/role/negatedPeriodStartLabel" xlink:href="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedPeriodStartLabel" xlink:type="simple" />
  <link:roleRef roleURI="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:href="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedTerseLabel" xlink:type="simple" />
  <link:roleRef roleURI="http://www.xbrl.org/2009/role/negatedTotalLabel" xlink:href="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedTotalLabel" xlink:type="simple" />
  <link:roleRef roleURI="http://www.xbrl.org/2009/role/netLabel" xlink:href="http://www.xbrl.org/lrr/role/net-2009-12-16.xsd#netLabel" xlink:type="simple" />
  <link:presentationLink xlink:role="http://liquidityservices.com/role/A401KBenefitPlan" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DefinedContributionPensionAndOtherPostretirementPlansDisclosureAbstract" xlink:label="loc_us-gaap_DefinedContributionPensionAndOtherPostretirementPlansDisclosureAbstract_953FC76A77B772810E77F041C7D11FF4" xlink:type="locator" />
    <link:loc xlink:href="lqdt-20180930.xsd#lqdt_DefinedContributionPlanDisclosureTextBlock" xlink:label="loc_lqdt_DefinedContributionPlanDisclosureTextBlock_A1EB3BB415009C2929A1F041C7DA90F4" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedContributionPensionAndOtherPostretirementPlansDisclosureAbstract_953FC76A77B772810E77F041C7D11FF4" xlink:to="loc_lqdt_DefinedContributionPlanDisclosureTextBlock_A1EB3BB415009C2929A1F041C7DA90F4" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://liquidityservices.com/role/A401KBenefitPlanDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DefinedContributionPensionAndOtherPostretirementPlansDisclosureAbstract" xlink:label="loc_us-gaap_DefinedContributionPensionAndOtherPostretirementPlansDisclosureAbstract_DB386BD756BD59EB597BF041C7ED2E06" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DefinedContributionPlanEmployerDiscretionaryContributionAmount" xlink:label="loc_us-gaap_DefinedContributionPlanEmployerDiscretionaryContributionAmount_EF41052E973BC5F79D83F041C7EE6DEF" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedContributionPensionAndOtherPostretirementPlansDisclosureAbstract_DB386BD756BD59EB597BF041C7ED2E06" xlink:to="loc_us-gaap_DefinedContributionPlanEmployerDiscretionaryContributionAmount_EF41052E973BC5F79D83F041C7EE6DEF" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://liquidityservices.com/role/Acquisition" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessCombinationsAbstract" xlink:label="loc_us-gaap_BusinessCombinationsAbstract_83CB3A203DBD53019FBEFA43D44B9E93" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessCombinationDisclosureTextBlock" xlink:label="loc_us-gaap_BusinessCombinationDisclosureTextBlock_36E24A0EA7E4BC01B533FA43D44B19F2" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_BusinessCombinationsAbstract_83CB3A203DBD53019FBEFA43D44B9E93" xlink:to="loc_us-gaap_BusinessCombinationDisclosureTextBlock_36E24A0EA7E4BC01B533FA43D44B19F2" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://liquidityservices.com/role/AcquisitionNarrativeDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessCombinationsAbstract" xlink:label="loc_us-gaap_BusinessCombinationsAbstract_D3C9DF684731F0D2D1B8845A0304CE2A" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable" xlink:label="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_24A6C85F5D50C1FB3854845A0304F3DA" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_BusinessCombinationsAbstract_D3C9DF684731F0D2D1B8845A0304CE2A" xlink:to="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_24A6C85F5D50C1FB3854845A0304F3DA" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RangeAxis" xlink:label="loc_us-gaap_RangeAxis_375C63A2EE73B73F6A1C845A0305AA1E" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_24A6C85F5D50C1FB3854845A0304F3DA" xlink:to="loc_us-gaap_RangeAxis_375C63A2EE73B73F6A1C845A0305AA1E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RangeMember" xlink:label="loc_us-gaap_RangeMember_02D5E69F5D82FFB21406845A03059EAE" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RangeAxis_375C63A2EE73B73F6A1C845A0305AA1E" xlink:to="loc_us-gaap_RangeMember_02D5E69F5D82FFB21406845A03059EAE" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_MinimumMember" xlink:label="loc_us-gaap_MinimumMember_0C32CC6985E904A2A878845A0305C223" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RangeMember_02D5E69F5D82FFB21406845A03059EAE" xlink:to="loc_us-gaap_MinimumMember_0C32CC6985E904A2A878845A0305C223" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_MaximumMember" xlink:label="loc_us-gaap_MaximumMember_2A54AA05D0DECC085DCD845A0305E73F" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RangeMember_02D5E69F5D82FFB21406845A03059EAE" xlink:to="loc_us-gaap_MaximumMember_2A54AA05D0DECC085DCD845A0305E73F" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180930.xsd#lqdt_MeasurementInputTypeAxis" xlink:label="loc_lqdt_MeasurementInputTypeAxis_543E75CD5AFF39BDF6C7845A0306600C" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_24A6C85F5D50C1FB3854845A0304F3DA" xlink:to="loc_lqdt_MeasurementInputTypeAxis_543E75CD5AFF39BDF6C7845A0306600C" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180930.xsd#lqdt_MeasurementInputTypeDomain" xlink:label="loc_lqdt_MeasurementInputTypeDomain_BC9308FE31ECC7056D0D845A03062ED5" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_lqdt_MeasurementInputTypeAxis_543E75CD5AFF39BDF6C7845A0306600C" xlink:to="loc_lqdt_MeasurementInputTypeDomain_BC9308FE31ECC7056D0D845A03062ED5" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180930.xsd#lqdt_MeasurementInputRateOfReturnMember" xlink:label="loc_lqdt_MeasurementInputRateOfReturnMember_576A479731EEC35FEA84845A03068C5B" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_lqdt_MeasurementInputTypeDomain_BC9308FE31ECC7056D0D845A03062ED5" xlink:to="loc_lqdt_MeasurementInputRateOfReturnMember_576A479731EEC35FEA84845A03068C5B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessAcquisitionAxis" xlink:label="loc_us-gaap_BusinessAcquisitionAxis_7F71B54BB4FFD5DDCAB2845A0306803C" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_24A6C85F5D50C1FB3854845A0304F3DA" xlink:to="loc_us-gaap_BusinessAcquisitionAxis_7F71B54BB4FFD5DDCAB2845A0306803C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessAcquisitionAcquireeDomain" xlink:label="loc_us-gaap_BusinessAcquisitionAcquireeDomain_CCD46FFCDA083101E8A7845A0307AADD" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_BusinessAcquisitionAxis_7F71B54BB4FFD5DDCAB2845A0306803C" xlink:to="loc_us-gaap_BusinessAcquisitionAcquireeDomain_CCD46FFCDA083101E8A7845A0307AADD" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180930.xsd#lqdt_MachinioCorporationMember" xlink:label="loc_lqdt_MachinioCorporationMember_EDD04CFF43A1991D917F845A030773AD" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_BusinessAcquisitionAcquireeDomain_CCD46FFCDA083101E8A7845A0307AADD" xlink:to="loc_lqdt_MachinioCorporationMember_EDD04CFF43A1991D917F845A030773AD" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessAcquisitionLineItems" xlink:label="loc_us-gaap_BusinessAcquisitionLineItems_17A523A4D85F38CD5320845A03077716" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_24A6C85F5D50C1FB3854845A0304F3DA" xlink:to="loc_us-gaap_BusinessAcquisitionLineItems_17A523A4D85F38CD5320845A03077716" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessAcquisitionPercentageOfVotingInterestsAcquired" xlink:label="loc_us-gaap_BusinessAcquisitionPercentageOfVotingInterestsAcquired_78BF5432ED7AA3EE3CC9845A03084EB4" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_17A523A4D85F38CD5320845A03077716" xlink:to="loc_us-gaap_BusinessAcquisitionPercentageOfVotingInterestsAcquired_78BF5432ED7AA3EE3CC9845A03084EB4" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessCombinationConsiderationTransferred1" xlink:label="loc_us-gaap_BusinessCombinationConsiderationTransferred1_B7E08E62274A26E0AC65845A03088F14" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_17A523A4D85F38CD5320845A03077716" xlink:to="loc_us-gaap_BusinessCombinationConsiderationTransferred1_B7E08E62274A26E0AC65845A03088F14" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCashAndEquivalents" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCashAndEquivalents_027E83429DA9EB8EEFC8845A0308F5A9" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_17A523A4D85F38CD5320845A03077716" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCashAndEquivalents_027E83429DA9EB8EEFC8845A0308F5A9" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PaymentsToAcquireBusinessesGross" xlink:label="loc_us-gaap_PaymentsToAcquireBusinessesGross_6ABC7CB8F2A24BC46F67845A0308E8A1" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_17A523A4D85F38CD5320845A03077716" xlink:to="loc_us-gaap_PaymentsToAcquireBusinessesGross_6ABC7CB8F2A24BC46F67845A0308E8A1" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessCombinationConsiderationTransferredEquityInterestsIssuedAndIssuable" xlink:label="loc_us-gaap_BusinessCombinationConsiderationTransferredEquityInterestsIssuedAndIssuable_4DE02A3C5587F6FBAC34845A0309E2F4" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_17A523A4D85F38CD5320845A03077716" xlink:to="loc_us-gaap_BusinessCombinationConsiderationTransferredEquityInterestsIssuedAndIssuable_4DE02A3C5587F6FBAC34845A0309E2F4" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessCombinationContingentConsiderationArrangementsRangeOfOutcomesValueHigh" xlink:label="loc_us-gaap_BusinessCombinationContingentConsiderationArrangementsRangeOfOutcomesValueHigh_F86521FF4B86225F8F5B845A0309A67F" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_17A523A4D85F38CD5320845A03077716" xlink:to="loc_us-gaap_BusinessCombinationContingentConsiderationArrangementsRangeOfOutcomesValueHigh_F86521FF4B86225F8F5B845A0309A67F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessCombinationConsiderationTransferredLiabilitiesIncurred" xlink:label="loc_us-gaap_BusinessCombinationConsiderationTransferredLiabilitiesIncurred_F471FDBD5E185B222E46845A0309686A" xlink:type="locator" />
    <link:presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_17A523A4D85F38CD5320845A03077716" xlink:to="loc_us-gaap_BusinessCombinationConsiderationTransferredLiabilitiesIncurred_F471FDBD5E185B222E46845A0309686A" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180930.xsd#lqdt_ShareBasedCompensationArrangementByShareBasedPaymentAwardSharesIssuedInPeriodValue" xlink:label="loc_lqdt_ShareBasedCompensationArrangementByShareBasedPaymentAwardSharesIssuedInPeriodValue_4ADBF54B5E1BC170B998845A03096FCB" xlink:type="locator" />
    <link:presentationArc order="8" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_17A523A4D85F38CD5320845A03077716" xlink:to="loc_lqdt_ShareBasedCompensationArrangementByShareBasedPaymentAwardSharesIssuedInPeriodValue_4ADBF54B5E1BC170B998845A03096FCB" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_Goodwill" xlink:label="loc_us-gaap_Goodwill_7D432AA19C396AD9CDC7845A030973B5" xlink:type="locator" />
    <link:presentationArc order="9" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_17A523A4D85F38CD5320845A03077716" xlink:to="loc_us-gaap_Goodwill_7D432AA19C396AD9CDC7845A030973B5" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessAcquisitionPurchasePriceAllocationGoodwillExpectedTaxDeductibleAmount" xlink:label="loc_us-gaap_BusinessAcquisitionPurchasePriceAllocationGoodwillExpectedTaxDeductibleAmount_35D5963A16ED10C7B01C845A030AD31A" xlink:type="locator" />
    <link:presentationArc order="10" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_17A523A4D85F38CD5320845A03077716" xlink:to="loc_us-gaap_BusinessAcquisitionPurchasePriceAllocationGoodwillExpectedTaxDeductibleAmount_35D5963A16ED10C7B01C845A030AD31A" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180930.xsd#lqdt_BusinessCombinationIntangibleAssetsMeasurementInput" xlink:label="loc_lqdt_BusinessCombinationIntangibleAssetsMeasurementInput_2E41A2B20B125A82E237845A030A247F" xlink:type="locator" />
    <link:presentationArc order="11" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_17A523A4D85F38CD5320845A03077716" xlink:to="loc_lqdt_BusinessCombinationIntangibleAssetsMeasurementInput_2E41A2B20B125A82E237845A030A247F" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180930.xsd#lqdt_BusinessCombinationContractWithCustomerLiabilityMeasurementInput" xlink:label="loc_lqdt_BusinessCombinationContractWithCustomerLiabilityMeasurementInput_3F3B4E6635C52A28DEAF845A030A32C8" xlink:type="locator" />
    <link:presentationArc order="12" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_17A523A4D85F38CD5320845A03077716" xlink:to="loc_lqdt_BusinessCombinationContractWithCustomerLiabilityMeasurementInput_3F3B4E6635C52A28DEAF845A030A32C8" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180930.xsd#lqdt_BusinessCombinationContingentConsiderationLiabilityMeasurementInput" xlink:label="loc_lqdt_BusinessCombinationContingentConsiderationLiabilityMeasurementInput_F7E2410F4CE0A678D4E2845A030A3B08" xlink:type="locator" />
    <link:presentationArc order="13" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_17A523A4D85F38CD5320845A03077716" xlink:to="loc_lqdt_BusinessCombinationContingentConsiderationLiabilityMeasurementInput_F7E2410F4CE0A678D4E2845A030A3B08" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessCombinationProFormaInformationRevenueOfAcquireeSinceAcquisitionDateActual" xlink:label="loc_us-gaap_BusinessCombinationProFormaInformationRevenueOfAcquireeSinceAcquisitionDateActual_533B68B40B06A73A2C15845A030ADB43" xlink:type="locator" />
    <link:presentationArc order="14" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_17A523A4D85F38CD5320845A03077716" xlink:to="loc_us-gaap_BusinessCombinationProFormaInformationRevenueOfAcquireeSinceAcquisitionDateActual_533B68B40B06A73A2C15845A030ADB43" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessCombinationProFormaInformationEarningsOrLossOfAcquireeSinceAcquisitionDateActual" xlink:label="loc_us-gaap_BusinessCombinationProFormaInformationEarningsOrLossOfAcquireeSinceAcquisitionDateActual_CE933AD9070C66B7458C845A030A5960" xlink:type="locator" />
    <link:presentationArc order="15" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_17A523A4D85F38CD5320845A03077716" xlink:to="loc_us-gaap_BusinessCombinationProFormaInformationEarningsOrLossOfAcquireeSinceAcquisitionDateActual_CE933AD9070C66B7458C845A030A5960" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://liquidityservices.com/role/AcquisitionProFormaDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessCombinationsAbstract" xlink:label="loc_us-gaap_BusinessCombinationsAbstract_55BE378C7EE2AC73A25055BAF9521EEC" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable" xlink:label="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_4E0357EB47F0D1EA0BD355BBC22F1079" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_BusinessCombinationsAbstract_55BE378C7EE2AC73A25055BAF9521EEC" xlink:to="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_4E0357EB47F0D1EA0BD355BBC22F1079" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessAcquisitionAxis" xlink:label="loc_us-gaap_BusinessAcquisitionAxis_E87308B95FF948053B0855BBC2307FD7" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_4E0357EB47F0D1EA0BD355BBC22F1079" xlink:to="loc_us-gaap_BusinessAcquisitionAxis_E87308B95FF948053B0855BBC2307FD7" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessAcquisitionAcquireeDomain" xlink:label="loc_us-gaap_BusinessAcquisitionAcquireeDomain_D1D8414B9B050B7A50F955BBC230753B" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_BusinessAcquisitionAxis_E87308B95FF948053B0855BBC2307FD7" xlink:to="loc_us-gaap_BusinessAcquisitionAcquireeDomain_D1D8414B9B050B7A50F955BBC230753B" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180930.xsd#lqdt_MachinioCorporationMember" xlink:label="loc_lqdt_MachinioCorporationMember_003F3FC38A0101F2326055BC3F306A2B" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_BusinessAcquisitionAcquireeDomain_D1D8414B9B050B7A50F955BBC230753B" xlink:to="loc_lqdt_MachinioCorporationMember_003F3FC38A0101F2326055BC3F306A2B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessAcquisitionLineItems" xlink:label="loc_us-gaap_BusinessAcquisitionLineItems_5B1D6A4357CB7575D5B355BBC23AACFD" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_4E0357EB47F0D1EA0BD355BBC22F1079" xlink:to="loc_us-gaap_BusinessAcquisitionLineItems_5B1D6A4357CB7575D5B355BBC23AACFD" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessAcquisitionsProFormaRevenue" xlink:label="loc_us-gaap_BusinessAcquisitionsProFormaRevenue_BF5C66BACDF8918D92D055BB1F3CD2CA" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_5B1D6A4357CB7575D5B355BBC23AACFD" xlink:to="loc_us-gaap_BusinessAcquisitionsProFormaRevenue_BF5C66BACDF8918D92D055BB1F3CD2CA" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessAcquisitionsProFormaNetIncomeLoss" xlink:label="loc_us-gaap_BusinessAcquisitionsProFormaNetIncomeLoss_1D1D30B567787B0580C655BB76DF0345" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_5B1D6A4357CB7575D5B355BBC23AACFD" xlink:to="loc_us-gaap_BusinessAcquisitionsProFormaNetIncomeLoss_1D1D30B567787B0580C655BB76DF0345" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://liquidityservices.com/role/AcquisitionPurchasePriceAllocationDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessCombinationsAbstract" xlink:label="loc_us-gaap_BusinessCombinationsAbstract_3A70249DCBA25E858836615F6C33EA24" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable" xlink:label="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_2AF0D87FFDFD33135EB8615F6C33DBF0" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_BusinessCombinationsAbstract_3A70249DCBA25E858836615F6C33EA24" xlink:to="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_2AF0D87FFDFD33135EB8615F6C33DBF0" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_8F9FC19610D59892E5BE615F6C342EC5" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_2AF0D87FFDFD33135EB8615F6C33DBF0" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_8F9FC19610D59892E5BE615F6C342EC5" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_43801930D832BD591133615F6C35ED94" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_8F9FC19610D59892E5BE615F6C342EC5" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_43801930D832BD591133615F6C35ED94" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CustomerRelationshipsMember" xlink:label="loc_us-gaap_CustomerRelationshipsMember_B1EEE146B2CC6668B769615F6C367836" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_43801930D832BD591133615F6C35ED94" xlink:to="loc_us-gaap_CustomerRelationshipsMember_B1EEE146B2CC6668B769615F6C367836" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DevelopedTechnologyRightsMember" xlink:label="loc_us-gaap_DevelopedTechnologyRightsMember_3491E8CF10B7AA1015CB615F6C36932B" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_43801930D832BD591133615F6C35ED94" xlink:to="loc_us-gaap_DevelopedTechnologyRightsMember_3491E8CF10B7AA1015CB615F6C36932B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_TradeNamesMember" xlink:label="loc_us-gaap_TradeNamesMember_3BF0447CEB8DF0729656615F6C36C185" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_43801930D832BD591133615F6C35ED94" xlink:to="loc_us-gaap_TradeNamesMember_3BF0447CEB8DF0729656615F6C36C185" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessAcquisitionAxis" xlink:label="loc_us-gaap_BusinessAcquisitionAxis_0302586475713EDB9611615F6C3CB47A" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_2AF0D87FFDFD33135EB8615F6C33DBF0" xlink:to="loc_us-gaap_BusinessAcquisitionAxis_0302586475713EDB9611615F6C3CB47A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessAcquisitionAcquireeDomain" xlink:label="loc_us-gaap_BusinessAcquisitionAcquireeDomain_21C887D4427DC6DCF676615F6C3CAF16" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_BusinessAcquisitionAxis_0302586475713EDB9611615F6C3CB47A" xlink:to="loc_us-gaap_BusinessAcquisitionAcquireeDomain_21C887D4427DC6DCF676615F6C3CAF16" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180930.xsd#lqdt_MachinioCorporationMember" xlink:label="loc_lqdt_MachinioCorporationMember_D928B2219DDE74060A05615F6C3CFD70" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_BusinessAcquisitionAcquireeDomain_21C887D4427DC6DCF676615F6C3CAF16" xlink:to="loc_lqdt_MachinioCorporationMember_D928B2219DDE74060A05615F6C3CFD70" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessAcquisitionLineItems" xlink:label="loc_us-gaap_BusinessAcquisitionLineItems_E45AA770A98B193D88BB615F6C3D9920" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_2AF0D87FFDFD33135EB8615F6C33DBF0" xlink:to="loc_us-gaap_BusinessAcquisitionLineItems_E45AA770A98B193D88BB615F6C3D9920" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsOther" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsOther_B248A4062F383D53D987615F6C3D8CD0" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_E45AA770A98B193D88BB615F6C3D9920" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsOther_B248A4062F383D53D987615F6C3D8CD0" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_Goodwill" xlink:label="loc_us-gaap_Goodwill_4A3FD92740B1589B599B615F6C3DF59E" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_E45AA770A98B193D88BB615F6C3D9920" xlink:to="loc_us-gaap_Goodwill_4A3FD92740B1589B599B615F6C3DF59E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles_4E660488A71039D11CE9615F6C3E0E3B" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_E45AA770A98B193D88BB615F6C3D9920" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles_4E660488A71039D11CE9615F6C3E0E3B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment_031C01B8FA6AA1710995615F6C3ECCB1" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_E45AA770A98B193D88BB615F6C3D9920" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment_031C01B8FA6AA1710995615F6C3ECCB1" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities_B72F200FF249520B0E0E61607F290B98" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_E45AA770A98B193D88BB615F6C3D9920" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities_B72F200FF249520B0E0E61607F290B98" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesDeferredRevenue" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesDeferredRevenue_AB58CAEBE9CE3DAFEEAA615F6C3EF4F6" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_E45AA770A98B193D88BB615F6C3D9920" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesDeferredRevenue_AB58CAEBE9CE3DAFEEAA615F6C3EF4F6" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedNet" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedNet_A52EB3EC3D248BC29EB4615F6C3F130F" xlink:type="locator" />
    <link:presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_E45AA770A98B193D88BB615F6C3D9920" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedNet_A52EB3EC3D248BC29EB4615F6C3F130F" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://liquidityservices.com/role/AcquisitionTables" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessCombinationsAbstract" xlink:label="loc_us-gaap_BusinessCombinationsAbstract_F8B85CF8B95D58F04450FA504090410D" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTextBlock" xlink:label="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTextBlock_DC343558F9171E54ACD1FA5042C0FE03" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_BusinessCombinationsAbstract_F8B85CF8B95D58F04450FA504090410D" xlink:to="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTextBlock_DC343558F9171E54ACD1FA5042C0FE03" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessAcquisitionProFormaInformationTextBlock" xlink:label="loc_us-gaap_BusinessAcquisitionProFormaInformationTextBlock_7F78417C6558726106F5FA522AA4BD28" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_BusinessCombinationsAbstract_F8B85CF8B95D58F04450FA504090410D" xlink:to="loc_us-gaap_BusinessAcquisitionProFormaInformationTextBlock_7F78417C6558726106F5FA522AA4BD28" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://liquidityservices.com/role/BusinessRealignmentExpenses" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RestructuringAndRelatedActivitiesAbstract" xlink:label="loc_us-gaap_RestructuringAndRelatedActivitiesAbstract_462E13C98C2D26DBCAA186E5D85A466F" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RestructuringAndRelatedActivitiesDisclosureTextBlock" xlink:label="loc_us-gaap_RestructuringAndRelatedActivitiesDisclosureTextBlock_EA05B8A07DC755BEBD3B86E5D85A7F3F" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RestructuringAndRelatedActivitiesAbstract_462E13C98C2D26DBCAA186E5D85A466F" xlink:to="loc_us-gaap_RestructuringAndRelatedActivitiesDisclosureTextBlock_EA05B8A07DC755BEBD3B86E5D85A7F3F" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://liquidityservices.com/role/BusinessRealignmentExpensesActivityInLiabilityForBusinessRealignmentInitiativesDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RestructuringAndRelatedActivitiesAbstract" xlink:label="loc_us-gaap_RestructuringAndRelatedActivitiesAbstract_C442D60691023064E6812CCC159E13D8" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfRestructuringAndRelatedCostsTable" xlink:label="loc_us-gaap_ScheduleOfRestructuringAndRelatedCostsTable_2097A1174FE8180B90902CCC159F17E9" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RestructuringAndRelatedActivitiesAbstract_C442D60691023064E6812CCC159E13D8" xlink:to="loc_us-gaap_ScheduleOfRestructuringAndRelatedCostsTable_2097A1174FE8180B90902CCC159F17E9" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ConsolidationItemsAxis" xlink:label="loc_us-gaap_ConsolidationItemsAxis_AD014215E2AC322838AA2CCC159FFC09" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfRestructuringAndRelatedCostsTable_2097A1174FE8180B90902CCC159F17E9" xlink:to="loc_us-gaap_ConsolidationItemsAxis_AD014215E2AC322838AA2CCC159FFC09" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ConsolidationItemsDomain" xlink:label="loc_us-gaap_ConsolidationItemsDomain_AA9205E20E7A30B76B4A2CCC159F0BF2" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ConsolidationItemsAxis_AD014215E2AC322838AA2CCC159FFC09" xlink:to="loc_us-gaap_ConsolidationItemsDomain_AA9205E20E7A30B76B4A2CCC159F0BF2" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CorporateNonSegmentMember" xlink:label="loc_us-gaap_CorporateNonSegmentMember_11B77F626C340720F7532CCC15A0EE5D" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ConsolidationItemsDomain_AA9205E20E7A30B76B4A2CCC159F0BF2" xlink:to="loc_us-gaap_CorporateNonSegmentMember_11B77F626C340720F7532CCC15A0EE5D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StatementBusinessSegmentsAxis" xlink:label="loc_us-gaap_StatementBusinessSegmentsAxis_415E502DF88C3C2951282CCC15A13B0D" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfRestructuringAndRelatedCostsTable_2097A1174FE8180B90902CCC159F17E9" xlink:to="loc_us-gaap_StatementBusinessSegmentsAxis_415E502DF88C3C2951282CCC15A13B0D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SegmentDomain" xlink:label="loc_us-gaap_SegmentDomain_9705AE916DF9D44230E92CCC15A128FC" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementBusinessSegmentsAxis_415E502DF88C3C2951282CCC15A13B0D" xlink:to="loc_us-gaap_SegmentDomain_9705AE916DF9D44230E92CCC15A128FC" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180930.xsd#lqdt_CAGMember" xlink:label="loc_lqdt_CAGMember_FE4DE0F8E80C3419AB532CCC15A25177" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentDomain_9705AE916DF9D44230E92CCC15A128FC" xlink:to="loc_lqdt_CAGMember_FE4DE0F8E80C3419AB532CCC15A25177" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RestructuringCostAndReserveAxis" xlink:label="loc_us-gaap_RestructuringCostAndReserveAxis_0EBE2ADEC5D59A6858E42CCC15A26A99" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfRestructuringAndRelatedCostsTable_2097A1174FE8180B90902CCC159F17E9" xlink:to="loc_us-gaap_RestructuringCostAndReserveAxis_0EBE2ADEC5D59A6858E42CCC15A26A99" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_TypeOfRestructuringDomain" xlink:label="loc_us-gaap_TypeOfRestructuringDomain_C662098B446D1FDD1AFD2CCC15A2CEC3" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RestructuringCostAndReserveAxis_0EBE2ADEC5D59A6858E42CCC15A26A99" xlink:to="loc_us-gaap_TypeOfRestructuringDomain_C662098B446D1FDD1AFD2CCC15A2CEC3" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EmployeeSeveranceMember" xlink:label="loc_us-gaap_EmployeeSeveranceMember_B8FE05E5F21ADA3F38D92CCC15A2ACF5" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_TypeOfRestructuringDomain_C662098B446D1FDD1AFD2CCC15A2CEC3" xlink:to="loc_us-gaap_EmployeeSeveranceMember_B8FE05E5F21ADA3F38D92CCC15A2ACF5" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180930.xsd#lqdt_OccupancyCostMember" xlink:label="loc_lqdt_OccupancyCostMember_51D80AE5458188C46DF12CCC15A336B4" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_TypeOfRestructuringDomain_C662098B446D1FDD1AFD2CCC15A2CEC3" xlink:to="loc_lqdt_OccupancyCostMember_51D80AE5458188C46DF12CCC15A336B4" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RestructuringCostAndReserveLineItems" xlink:label="loc_us-gaap_RestructuringCostAndReserveLineItems_771F4D7BCA40D03959652CCC15A33A83" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfRestructuringAndRelatedCostsTable_2097A1174FE8180B90902CCC159F17E9" xlink:to="loc_us-gaap_RestructuringCostAndReserveLineItems_771F4D7BCA40D03959652CCC15A33A83" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RestructuringReserveRollForward" xlink:label="loc_us-gaap_RestructuringReserveRollForward_0D7D9E59B1040522FC032CCC15A4C8B5" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RestructuringCostAndReserveLineItems_771F4D7BCA40D03959652CCC15A33A83" xlink:to="loc_us-gaap_RestructuringReserveRollForward_0D7D9E59B1040522FC032CCC15A4C8B5" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RestructuringReserve" xlink:label="loc_us-gaap_RestructuringReserve_BDF6FC978A4007E24C002CCC15A4A3F5" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/periodStartLabel" priority="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RestructuringReserveRollForward_0D7D9E59B1040522FC032CCC15A4C8B5" xlink:to="loc_us-gaap_RestructuringReserve_BDF6FC978A4007E24C002CCC15A4A3F5" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RestructuringCharges" xlink:label="loc_us-gaap_RestructuringCharges_37A15B85C0C1BB89F7D12CCC15A4E940" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="8" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RestructuringReserveRollForward_0D7D9E59B1040522FC032CCC15A4C8B5" xlink:to="loc_us-gaap_RestructuringCharges_37A15B85C0C1BB89F7D12CCC15A4E940" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PaymentsForRestructuring" xlink:label="loc_us-gaap_PaymentsForRestructuring_2530C645A42EC071F8F42CCC15A4554E" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" priority="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RestructuringReserveRollForward_0D7D9E59B1040522FC032CCC15A4C8B5" xlink:to="loc_us-gaap_PaymentsForRestructuring_2530C645A42EC071F8F42CCC15A4554E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RestructuringReserve" xlink:label="loc_us-gaap_RestructuringReserve_5D9007256A5D87A2957B2CCC15A5C928" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/periodEndLabel" priority="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RestructuringReserveRollForward_0D7D9E59B1040522FC032CCC15A4C8B5" xlink:to="loc_us-gaap_RestructuringReserve_5D9007256A5D87A2957B2CCC15A5C928" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://liquidityservices.com/role/BusinessRealignmentExpensesNarrativeDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RestructuringAndRelatedActivitiesAbstract" xlink:label="loc_us-gaap_RestructuringAndRelatedActivitiesAbstract_F9D2C8113514B5074A7174DC0B631B11" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsTable" xlink:label="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsTable_7AD96C1B68A121D320EE74DC0B6332F6" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RestructuringAndRelatedActivitiesAbstract_F9D2C8113514B5074A7174DC0B631B11" xlink:to="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsTable_7AD96C1B68A121D320EE74DC0B6332F6" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SubsequentEventTypeAxis" xlink:label="loc_us-gaap_SubsequentEventTypeAxis_E63BFFB40C0B3B854B1E74DC0B644F13" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsTable_7AD96C1B68A121D320EE74DC0B6332F6" xlink:to="loc_us-gaap_SubsequentEventTypeAxis_E63BFFB40C0B3B854B1E74DC0B644F13" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SubsequentEventTypeDomain" xlink:label="loc_us-gaap_SubsequentEventTypeDomain_A094C745EC8AD2303BF974DC0B64F559" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SubsequentEventTypeAxis_E63BFFB40C0B3B854B1E74DC0B644F13" xlink:to="loc_us-gaap_SubsequentEventTypeDomain_A094C745EC8AD2303BF974DC0B64F559" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SubsequentEventMember" xlink:label="loc_us-gaap_SubsequentEventMember_C044C48148EDE6E1666774DC0B64E411" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SubsequentEventTypeDomain_A094C745EC8AD2303BF974DC0B64F559" xlink:to="loc_us-gaap_SubsequentEventMember_C044C48148EDE6E1666774DC0B64E411" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ConsolidationItemsAxis" xlink:label="loc_us-gaap_ConsolidationItemsAxis_1A77ABC2F6D4537D774A74DC0B6548D1" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsTable_7AD96C1B68A121D320EE74DC0B6332F6" xlink:to="loc_us-gaap_ConsolidationItemsAxis_1A77ABC2F6D4537D774A74DC0B6548D1" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ConsolidationItemsDomain" xlink:label="loc_us-gaap_ConsolidationItemsDomain_78199BD1A43AACEA457074DC0B6A7DFE" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ConsolidationItemsAxis_1A77ABC2F6D4537D774A74DC0B6548D1" xlink:to="loc_us-gaap_ConsolidationItemsDomain_78199BD1A43AACEA457074DC0B6A7DFE" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CorporateNonSegmentMember" xlink:label="loc_us-gaap_CorporateNonSegmentMember_279269641D6FC02EBE7D74DC0B6AAD7F" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ConsolidationItemsDomain_78199BD1A43AACEA457074DC0B6A7DFE" xlink:to="loc_us-gaap_CorporateNonSegmentMember_279269641D6FC02EBE7D74DC0B6AAD7F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis" xlink:label="loc_us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis_65EB28D554990DC9FE4B74DC0B6B10F1" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsTable_7AD96C1B68A121D320EE74DC0B6332F6" xlink:to="loc_us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis_65EB28D554990DC9FE4B74DC0B6B10F1" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_MortgageLoansOnRealEstateNamePropertyTypeDomain" xlink:label="loc_us-gaap_MortgageLoansOnRealEstateNamePropertyTypeDomain_DF99DA973D2EA025968B74DC0B6B6504" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis_65EB28D554990DC9FE4B74DC0B6B10F1" xlink:to="loc_us-gaap_MortgageLoansOnRealEstateNamePropertyTypeDomain_DF99DA973D2EA025968B74DC0B6B6504" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OfficeBuildingMember" xlink:label="loc_us-gaap_OfficeBuildingMember_99611D1D40C3F349CA8574DC0B6B0922" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_MortgageLoansOnRealEstateNamePropertyTypeDomain_DF99DA973D2EA025968B74DC0B6B6504" xlink:to="loc_us-gaap_OfficeBuildingMember_99611D1D40C3F349CA8574DC0B6B0922" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RestructuringCostAndReserveAxis" xlink:label="loc_us-gaap_RestructuringCostAndReserveAxis_1CC8D949593D4EA0DB1874DC0B6B117E" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsTable_7AD96C1B68A121D320EE74DC0B6332F6" xlink:to="loc_us-gaap_RestructuringCostAndReserveAxis_1CC8D949593D4EA0DB1874DC0B6B117E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_TypeOfRestructuringDomain" xlink:label="loc_us-gaap_TypeOfRestructuringDomain_0791AE9822003BB243AC74DC0B6CD465" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RestructuringCostAndReserveAxis_1CC8D949593D4EA0DB1874DC0B6B117E" xlink:to="loc_us-gaap_TypeOfRestructuringDomain_0791AE9822003BB243AC74DC0B6CD465" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180930.xsd#lqdt_OccupancyCostMember" xlink:label="loc_lqdt_OccupancyCostMember_255A08A42BD537E8002A74DC0B6CA953" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_TypeOfRestructuringDomain_0791AE9822003BB243AC74DC0B6CD465" xlink:to="loc_lqdt_OccupancyCostMember_255A08A42BD537E8002A74DC0B6CA953" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EmployeeSeveranceMember" xlink:label="loc_us-gaap_EmployeeSeveranceMember_07BD57C0DD99A08BA12974DC0B6D2629" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_TypeOfRestructuringDomain_0791AE9822003BB243AC74DC0B6CD465" xlink:to="loc_us-gaap_EmployeeSeveranceMember_07BD57C0DD99A08BA12974DC0B6D2629" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180930.xsd#lqdt_OccupancyAndContractCostsMember" xlink:label="loc_lqdt_OccupancyAndContractCostsMember_75EDB2EA4186A03103BE74DC0B6DC31C" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_TypeOfRestructuringDomain_0791AE9822003BB243AC74DC0B6CD465" xlink:to="loc_lqdt_OccupancyAndContractCostsMember_75EDB2EA4186A03103BE74DC0B6DC31C" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180930.xsd#lqdt_LongLivedAssetImpairmentMember" xlink:label="loc_lqdt_LongLivedAssetImpairmentMember_7FCD548F603D1615262774DC0B6DE10C" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_TypeOfRestructuringDomain_0791AE9822003BB243AC74DC0B6CD465" xlink:to="loc_lqdt_LongLivedAssetImpairmentMember_7FCD548F603D1615262774DC0B6DE10C" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180930.xsd#lqdt_LegalandAdministrativeCostsMember" xlink:label="loc_lqdt_LegalandAdministrativeCostsMember_0095CF5F1344DA1F5FC174DC0B6D2D9C" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_TypeOfRestructuringDomain_0791AE9822003BB243AC74DC0B6CD465" xlink:to="loc_lqdt_LegalandAdministrativeCostsMember_0095CF5F1344DA1F5FC174DC0B6D2D9C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_GeneralAndAdministrativeExpenseMember" xlink:label="loc_us-gaap_GeneralAndAdministrativeExpenseMember_91F90C8323BB64D4D15C74DC0B6E9C5A" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_TypeOfRestructuringDomain_0791AE9822003BB243AC74DC0B6CD465" xlink:to="loc_us-gaap_GeneralAndAdministrativeExpenseMember_91F90C8323BB64D4D15C74DC0B6E9C5A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SellingAndMarketingExpenseMember" xlink:label="loc_us-gaap_SellingAndMarketingExpenseMember_3919D9B62C1625801AE974DC0B6E39ED" xlink:type="locator" />
    <link:presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_TypeOfRestructuringDomain_0791AE9822003BB243AC74DC0B6CD465" xlink:to="loc_us-gaap_SellingAndMarketingExpenseMember_3919D9B62C1625801AE974DC0B6E39ED" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180930.xsd#lqdt_TechnologyandOperationsMember" xlink:label="loc_lqdt_TechnologyandOperationsMember_BB6EA00E25C89C2457CB74DC0B6E391F" xlink:type="locator" />
    <link:presentationArc order="8" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_TypeOfRestructuringDomain_0791AE9822003BB243AC74DC0B6CD465" xlink:to="loc_lqdt_TechnologyandOperationsMember_BB6EA00E25C89C2457CB74DC0B6E391F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PropertyPlantAndEquipmentByTypeAxis" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_452BB9F98C03B01DA3DD74DC0B6E6A27" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsTable_7AD96C1B68A121D320EE74DC0B6332F6" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_452BB9F98C03B01DA3DD74DC0B6E6A27" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PropertyPlantAndEquipmentTypeDomain" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_B53B74D4D50E08CD282D74DC0B6E68C2" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_452BB9F98C03B01DA3DD74DC0B6E6A27" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_B53B74D4D50E08CD282D74DC0B6E68C2" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LeaseholdImprovementsMember" xlink:label="loc_us-gaap_LeaseholdImprovementsMember_E9EF5FE838F624623D0F74DC0B6F957F" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_B53B74D4D50E08CD282D74DC0B6E68C2" xlink:to="loc_us-gaap_LeaseholdImprovementsMember_E9EF5FE838F624623D0F74DC0B6F957F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_3267AAD9D4FF0A6C0BFE74DC0B6FDDEC" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsTable_7AD96C1B68A121D320EE74DC0B6332F6" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_3267AAD9D4FF0A6C0BFE74DC0B6FDDEC" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_6DACDA2B34DF82C7021974DC0B6F0A80" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_3267AAD9D4FF0A6C0BFE74DC0B6FDDEC" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_6DACDA2B34DF82C7021974DC0B6F0A80" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ContractBasedIntangibleAssetsMember" xlink:label="loc_us-gaap_ContractBasedIntangibleAssetsMember_2D818C173FE3308B2FAF74DC0B6F6250" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_6DACDA2B34DF82C7021974DC0B6F0A80" xlink:to="loc_us-gaap_ContractBasedIntangibleAssetsMember_2D818C173FE3308B2FAF74DC0B6F6250" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis" xlink:label="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis_483DE8D79724ADD95AEC74DC0B6F2C38" xlink:type="locator" />
    <link:presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsTable_7AD96C1B68A121D320EE74DC0B6332F6" xlink:to="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis_483DE8D79724ADD95AEC74DC0B6F2C38" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain" xlink:label="loc_us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain_3706F3C5C76A9F37789F74DC0B70BA85" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis_483DE8D79724ADD95AEC74DC0B6F2C38" xlink:to="loc_us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain_3706F3C5C76A9F37789F74DC0B70BA85" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180930.xsd#lqdt_TruckCenterMember" xlink:label="loc_lqdt_TruckCenterMember_5B5690D0EFCE93B75AA474DC0B70E9EC" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain_3706F3C5C76A9F37789F74DC0B70BA85" xlink:to="loc_lqdt_TruckCenterMember_5B5690D0EFCE93B75AA474DC0B70E9EC" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DisposalGroupClassificationAxis" xlink:label="loc_us-gaap_DisposalGroupClassificationAxis_92F764B43090D14E609774DC0B705D3D" xlink:type="locator" />
    <link:presentationArc order="8" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsTable_7AD96C1B68A121D320EE74DC0B6332F6" xlink:to="loc_us-gaap_DisposalGroupClassificationAxis_92F764B43090D14E609774DC0B705D3D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DisposalGroupClassificationDomain" xlink:label="loc_us-gaap_DisposalGroupClassificationDomain_A16408D3AB6AB7B73FEF74DC0B717CA5" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DisposalGroupClassificationAxis_92F764B43090D14E609774DC0B705D3D" xlink:to="loc_us-gaap_DisposalGroupClassificationDomain_A16408D3AB6AB7B73FEF74DC0B717CA5" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OperatingExpenseMember" xlink:label="loc_us-gaap_OperatingExpenseMember_A2FF2739A7AA7C3A7B5374DC0B713B11" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DisposalGroupClassificationDomain_A16408D3AB6AB7B73FEF74DC0B717CA5" xlink:to="loc_us-gaap_OperatingExpenseMember_A2FF2739A7AA7C3A7B5374DC0B713B11" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StatementBusinessSegmentsAxis" xlink:label="loc_us-gaap_StatementBusinessSegmentsAxis_32C897DA0A36358AFB8B74DC0B715F41" xlink:type="locator" />
    <link:presentationArc order="9" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsTable_7AD96C1B68A121D320EE74DC0B6332F6" xlink:to="loc_us-gaap_StatementBusinessSegmentsAxis_32C897DA0A36358AFB8B74DC0B715F41" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SegmentDomain" xlink:label="loc_us-gaap_SegmentDomain_121607DE5CDE6347D17974DC0B71B269" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementBusinessSegmentsAxis_32C897DA0A36358AFB8B74DC0B715F41" xlink:to="loc_us-gaap_SegmentDomain_121607DE5CDE6347D17974DC0B71B269" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180930.xsd#lqdt_CAGMember" xlink:label="loc_lqdt_CAGMember_61A85419441E3DD6910074DC0B71F32A" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentDomain_121607DE5CDE6347D17974DC0B71B269" xlink:to="loc_lqdt_CAGMember_61A85419441E3DD6910074DC0B71F32A" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180930.xsd#lqdt_IronDirectMember" xlink:label="loc_lqdt_IronDirectMember_DF7D775056FBB6674BB774DC0B72D14C" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentDomain_121607DE5CDE6347D17974DC0B71B269" xlink:to="loc_lqdt_IronDirectMember_DF7D775056FBB6674BB774DC0B72D14C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RestructuringPlanAxis" xlink:label="loc_us-gaap_RestructuringPlanAxis_4E2DD5D70B5993FCDC3074DC0B72BDDF" xlink:type="locator" />
    <link:presentationArc order="10" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsTable_7AD96C1B68A121D320EE74DC0B6332F6" xlink:to="loc_us-gaap_RestructuringPlanAxis_4E2DD5D70B5993FCDC3074DC0B72BDDF" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RestructuringPlanDomain" xlink:label="loc_us-gaap_RestructuringPlanDomain_FAE4775B2E545725AA0F74DC0B725F4B" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RestructuringPlanAxis_4E2DD5D70B5993FCDC3074DC0B72BDDF" xlink:to="loc_us-gaap_RestructuringPlanDomain_FAE4775B2E545725AA0F74DC0B725F4B" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180930.xsd#lqdt_SeveranceAgreementMember" xlink:label="loc_lqdt_SeveranceAgreementMember_B76781254ADAD901D96874DC0B73E81C" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RestructuringPlanDomain_FAE4775B2E545725AA0F74DC0B725F4B" xlink:to="loc_lqdt_SeveranceAgreementMember_B76781254ADAD901D96874DC0B73E81C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StatementGeographicalAxis" xlink:label="loc_us-gaap_StatementGeographicalAxis_695D14C1D9A34B3A5E1574DC0B738784" xlink:type="locator" />
    <link:presentationArc order="11" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsTable_7AD96C1B68A121D320EE74DC0B6332F6" xlink:to="loc_us-gaap_StatementGeographicalAxis_695D14C1D9A34B3A5E1574DC0B738784" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SegmentGeographicalDomain" xlink:label="loc_us-gaap_SegmentGeographicalDomain_D5A475A6FDF669692D1374DC0B732687" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementGeographicalAxis_695D14C1D9A34B3A5E1574DC0B738784" xlink:to="loc_us-gaap_SegmentGeographicalDomain_D5A475A6FDF669692D1374DC0B732687" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180930.xsd#lqdt_BethesdaMarylandMember" xlink:label="loc_lqdt_BethesdaMarylandMember_D716398E776D9683D18D74DC0B73C21A" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentGeographicalDomain_D5A475A6FDF669692D1374DC0B732687" xlink:to="loc_lqdt_BethesdaMarylandMember_D716398E776D9683D18D74DC0B73C21A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.sec.gov/stpr/2011/stpr-2011-01-31.xsd#stpr_DC" xlink:label="loc_stpr_DC_97762F9D9ADEED466AE674DC0B74E488" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentGeographicalDomain_D5A475A6FDF669692D1374DC0B732687" xlink:to="loc_stpr_DC_97762F9D9ADEED466AE674DC0B74E488" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeStatementLocationAxis" xlink:label="loc_us-gaap_IncomeStatementLocationAxis_52ACE3221FC54E32003174DC0B740713" xlink:type="locator" />
    <link:presentationArc order="12" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsTable_7AD96C1B68A121D320EE74DC0B6332F6" xlink:to="loc_us-gaap_IncomeStatementLocationAxis_52ACE3221FC54E32003174DC0B740713" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeStatementLocationDomain" xlink:label="loc_us-gaap_IncomeStatementLocationDomain_378DD9E88F90983C0C3674DC0B7496CA" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementLocationAxis_52ACE3221FC54E32003174DC0B740713" xlink:to="loc_us-gaap_IncomeStatementLocationDomain_378DD9E88F90983C0C3674DC0B7496CA" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OtherOperatingIncomeExpenseMember" xlink:label="loc_us-gaap_OtherOperatingIncomeExpenseMember_C8ECCD41D5D53EB7FC0D74DC0B74DE9C" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementLocationDomain_378DD9E88F90983C0C3674DC0B7496CA" xlink:to="loc_us-gaap_OtherOperatingIncomeExpenseMember_C8ECCD41D5D53EB7FC0D74DC0B74DE9C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsLineItems" xlink:label="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsLineItems_99D7DC1031F7AD12DFA274DC0B75A083" xlink:type="locator" />
    <link:presentationArc order="13" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsTable_7AD96C1B68A121D320EE74DC0B6332F6" xlink:to="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsLineItems_99D7DC1031F7AD12DFA274DC0B75A083" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RestructuringCosts" xlink:label="loc_us-gaap_RestructuringCosts_A1A91F77ABB855BBB0A074DC0B754687" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsLineItems_99D7DC1031F7AD12DFA274DC0B75A083" xlink:to="loc_us-gaap_RestructuringCosts_A1A91F77ABB855BBB0A074DC0B754687" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AssetImpairmentCharges" xlink:label="loc_us-gaap_AssetImpairmentCharges_522948964D41071904F674DC0B754DAC" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsLineItems_99D7DC1031F7AD12DFA274DC0B75A083" xlink:to="loc_us-gaap_AssetImpairmentCharges_522948964D41071904F674DC0B754DAC" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ImpairmentOfIntangibleAssetsFinitelived" xlink:label="loc_us-gaap_ImpairmentOfIntangibleAssetsFinitelived_7F880550FB42CCBA6C3374DC0B75CA82" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsLineItems_99D7DC1031F7AD12DFA274DC0B75A083" xlink:to="loc_us-gaap_ImpairmentOfIntangibleAssetsFinitelived_7F880550FB42CCBA6C3374DC0B75CA82" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ImpairmentOfLongLivedAssetsHeldForUse" xlink:label="loc_us-gaap_ImpairmentOfLongLivedAssetsHeldForUse_0E9DAE6AAF608869CD8D74DC0B761B12" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsLineItems_99D7DC1031F7AD12DFA274DC0B75A083" xlink:to="loc_us-gaap_ImpairmentOfLongLivedAssetsHeldForUse_0E9DAE6AAF608869CD8D74DC0B761B12" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability1" xlink:label="loc_us-gaap_BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability1_4F09A4070D083E85557D74DC0B7648C8" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsLineItems_99D7DC1031F7AD12DFA274DC0B75A083" xlink:to="loc_us-gaap_BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability1_4F09A4070D083E85557D74DC0B7648C8" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AreaOfRealEstateProperty" xlink:label="loc_us-gaap_AreaOfRealEstateProperty_1791A232198D2B32F54E74DC0B766B81" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsLineItems_99D7DC1031F7AD12DFA274DC0B75A083" xlink:to="loc_us-gaap_AreaOfRealEstateProperty_1791A232198D2B32F54E74DC0B766B81" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LossOnContractTermination" xlink:label="loc_us-gaap_LossOnContractTermination_35030AD40833BEF9ED9A74DC0B760E71" xlink:type="locator" />
    <link:presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsLineItems_99D7DC1031F7AD12DFA274DC0B75A083" xlink:to="loc_us-gaap_LossOnContractTermination_35030AD40833BEF9ED9A74DC0B760E71" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180930.xsd#lqdt_IncreaseDecreaseLossOnContractTermination" xlink:label="loc_lqdt_IncreaseDecreaseLossOnContractTermination_0A28D1112B4883323F7874DC0B763396" xlink:type="locator" />
    <link:presentationArc order="8" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsLineItems_99D7DC1031F7AD12DFA274DC0B75A083" xlink:to="loc_lqdt_IncreaseDecreaseLossOnContractTermination_0A28D1112B4883323F7874DC0B763396" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RestructuringCharges" xlink:label="loc_us-gaap_RestructuringCharges_09E5728D1E2C076569BB74DC0B763845" xlink:type="locator" />
    <link:presentationArc order="9" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsLineItems_99D7DC1031F7AD12DFA274DC0B75A083" xlink:to="loc_us-gaap_RestructuringCharges_09E5728D1E2C076569BB74DC0B763845" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RestructuringReserve" xlink:label="loc_us-gaap_RestructuringReserve_FBFFC6422B571B68BCD574DC0B77B0C4" xlink:type="locator" />
    <link:presentationArc order="10" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsLineItems_99D7DC1031F7AD12DFA274DC0B75A083" xlink:to="loc_us-gaap_RestructuringReserve_FBFFC6422B571B68BCD574DC0B77B0C4" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://liquidityservices.com/role/BusinessRealignmentExpensesTables" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RestructuringAndRelatedActivitiesAbstract" xlink:label="loc_us-gaap_RestructuringAndRelatedActivitiesAbstract_860132B69258A368A93D86E5D57D9C3C" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfRestructuringAndRelatedCostsTextBlock" xlink:label="loc_us-gaap_ScheduleOfRestructuringAndRelatedCostsTextBlock_56FB20E3E3B01810159886E5D57D301B" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RestructuringAndRelatedActivitiesAbstract_860132B69258A368A93D86E5D57D9C3C" xlink:to="loc_us-gaap_ScheduleOfRestructuringAndRelatedCostsTextBlock_56FB20E3E3B01810159886E5D57D301B" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://liquidityservices.com/role/Commitments" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LeasesOperatingAbstract" xlink:label="loc_us-gaap_LeasesOperatingAbstract_9C748917FC25966859D486E5D76B43BF" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LeasesOfLesseeDisclosureTextBlock" xlink:label="loc_us-gaap_LeasesOfLesseeDisclosureTextBlock_402F342D36FF4875D2A486E5D76B4A52" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LeasesOperatingAbstract_9C748917FC25966859D486E5D76B43BF" xlink:to="loc_us-gaap_LeasesOfLesseeDisclosureTextBlock_402F342D36FF4875D2A486E5D76B4A52" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://liquidityservices.com/role/CommitmentsDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LeasesOperatingAbstract" xlink:label="loc_us-gaap_LeasesOperatingAbstract_EFDCAEEE4F90EAE368D355E205294123" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfOperatingLeasedAssetsTable" xlink:label="loc_us-gaap_ScheduleOfOperatingLeasedAssetsTable_C88649370BA4951E52F655E2052ABD17" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LeasesOperatingAbstract_EFDCAEEE4F90EAE368D355E205294123" xlink:to="loc_us-gaap_ScheduleOfOperatingLeasedAssetsTable_C88649370BA4951E52F655E2052ABD17" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SubsequentEventTypeAxis" xlink:label="loc_us-gaap_SubsequentEventTypeAxis_A8D368B4F9075DB2BE495626034C578B" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfOperatingLeasedAssetsTable_C88649370BA4951E52F655E2052ABD17" xlink:to="loc_us-gaap_SubsequentEventTypeAxis_A8D368B4F9075DB2BE495626034C578B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SubsequentEventTypeDomain" xlink:label="loc_us-gaap_SubsequentEventTypeDomain_75684680A68B4A1A55D056260362EE35" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SubsequentEventTypeAxis_A8D368B4F9075DB2BE495626034C578B" xlink:to="loc_us-gaap_SubsequentEventTypeDomain_75684680A68B4A1A55D056260362EE35" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SubsequentEventMember" xlink:label="loc_us-gaap_SubsequentEventMember_7B2A5104057E022C0AB05626053068EF" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SubsequentEventTypeDomain_75684680A68B4A1A55D056260362EE35" xlink:to="loc_us-gaap_SubsequentEventMember_7B2A5104057E022C0AB05626053068EF" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis" xlink:label="loc_us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis_9CBA49BEC56F05C101DC55E2052A63F2" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfOperatingLeasedAssetsTable_C88649370BA4951E52F655E2052ABD17" xlink:to="loc_us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis_9CBA49BEC56F05C101DC55E2052A63F2" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_MortgageLoansOnRealEstateNamePropertyTypeDomain" xlink:label="loc_us-gaap_MortgageLoansOnRealEstateNamePropertyTypeDomain_FBB5C9DD0E11726606FC55E2052AD379" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis_9CBA49BEC56F05C101DC55E2052A63F2" xlink:to="loc_us-gaap_MortgageLoansOnRealEstateNamePropertyTypeDomain_FBB5C9DD0E11726606FC55E2052AD379" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OfficeBuildingMember" xlink:label="loc_us-gaap_OfficeBuildingMember_EB3590CCCFF1ABF8418A55E2052B5E96" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_MortgageLoansOnRealEstateNamePropertyTypeDomain_FBB5C9DD0E11726606FC55E2052AD379" xlink:to="loc_us-gaap_OfficeBuildingMember_EB3590CCCFF1ABF8418A55E2052B5E96" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StatementGeographicalAxis" xlink:label="loc_us-gaap_StatementGeographicalAxis_BBCA212E4EB00632CEE955E2052B6459" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfOperatingLeasedAssetsTable_C88649370BA4951E52F655E2052ABD17" xlink:to="loc_us-gaap_StatementGeographicalAxis_BBCA212E4EB00632CEE955E2052B6459" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SegmentGeographicalDomain" xlink:label="loc_us-gaap_SegmentGeographicalDomain_709E4FECADE8097FC86955E2052B2A7D" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementGeographicalAxis_BBCA212E4EB00632CEE955E2052B6459" xlink:to="loc_us-gaap_SegmentGeographicalDomain_709E4FECADE8097FC86955E2052B2A7D" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180930.xsd#lqdt_BethesdaMarylandMember" xlink:label="loc_lqdt_BethesdaMarylandMember_FD39531B2353AC814C6E55E2052C97D9" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentGeographicalDomain_709E4FECADE8097FC86955E2052B2A7D" xlink:to="loc_lqdt_BethesdaMarylandMember_FD39531B2353AC814C6E55E2052C97D9" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.sec.gov/stpr/2011/stpr-2011-01-31.xsd#stpr_DC" xlink:label="loc_stpr_DC_28CF70754284F34C2F5B55E2052CC542" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentGeographicalDomain_709E4FECADE8097FC86955E2052B2A7D" xlink:to="loc_stpr_DC_28CF70754284F34C2F5B55E2052CC542" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeStatementLocationAxis" xlink:label="loc_us-gaap_IncomeStatementLocationAxis_2014A041EAC82F1409CE55E2052C4C5C" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfOperatingLeasedAssetsTable_C88649370BA4951E52F655E2052ABD17" xlink:to="loc_us-gaap_IncomeStatementLocationAxis_2014A041EAC82F1409CE55E2052C4C5C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeStatementLocationDomain" xlink:label="loc_us-gaap_IncomeStatementLocationDomain_CA8CFCCD4EE9B84A84EF55E2052C181C" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementLocationAxis_2014A041EAC82F1409CE55E2052C4C5C" xlink:to="loc_us-gaap_IncomeStatementLocationDomain_CA8CFCCD4EE9B84A84EF55E2052C181C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OtherOperatingIncomeExpenseMember" xlink:label="loc_us-gaap_OtherOperatingIncomeExpenseMember_AA7D2FB203218FBF6A8255E2052D5B06" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementLocationDomain_CA8CFCCD4EE9B84A84EF55E2052C181C" xlink:to="loc_us-gaap_OtherOperatingIncomeExpenseMember_AA7D2FB203218FBF6A8255E2052D5B06" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OperatingLeasedAssetsLineItems" xlink:label="loc_us-gaap_OperatingLeasedAssetsLineItems_6295A00014C1130FA06C55E2052DDEEB" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfOperatingLeasedAssetsTable_C88649370BA4951E52F655E2052ABD17" xlink:to="loc_us-gaap_OperatingLeasedAssetsLineItems_6295A00014C1130FA06C55E2052DDEEB" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredRentCreditNoncurrent" xlink:label="loc_us-gaap_DeferredRentCreditNoncurrent_0666C9401953BD9591A355E2052D1D26" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OperatingLeasedAssetsLineItems_6295A00014C1130FA06C55E2052DDEEB" xlink:to="loc_us-gaap_DeferredRentCreditNoncurrent_0666C9401953BD9591A355E2052D1D26" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AreaOfRealEstateProperty" xlink:label="loc_us-gaap_AreaOfRealEstateProperty_0A4539A6000D20B0ECE755E2052E4448" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OperatingLeasedAssetsLineItems_6295A00014C1130FA06C55E2052DDEEB" xlink:to="loc_us-gaap_AreaOfRealEstateProperty_0A4539A6000D20B0ECE755E2052E4448" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LossOnContractTermination" xlink:label="loc_us-gaap_LossOnContractTermination_5AF2C24D650995290AFD55E2052E400C" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OperatingLeasedAssetsLineItems_6295A00014C1130FA06C55E2052DDEEB" xlink:to="loc_us-gaap_LossOnContractTermination_5AF2C24D650995290AFD55E2052E400C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OperatingLeasesRentExpenseNet" xlink:label="loc_us-gaap_OperatingLeasesRentExpenseNet_3C7890D18D69B07120A555E2052E5500" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OperatingLeasedAssetsLineItems_6295A00014C1130FA06C55E2052DDEEB" xlink:to="loc_us-gaap_OperatingLeasesRentExpenseNet_3C7890D18D69B07120A555E2052E5500" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OperatingLeasesFutureMinimumPaymentsDueAbstract" xlink:label="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDueAbstract_49A4097434D0F3474A0655E2052EF4D0" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LeasesOperatingAbstract_EFDCAEEE4F90EAE368D355E205294123" xlink:to="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDueAbstract_49A4097434D0F3474A0655E2052EF4D0" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OperatingLeasesFutureMinimumPaymentsDueCurrent" xlink:label="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDueCurrent_A68B4B5AFE3C0F9CC87A55E2052FF7AB" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDueAbstract_49A4097434D0F3474A0655E2052EF4D0" xlink:to="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDueCurrent_A68B4B5AFE3C0F9CC87A55E2052FF7AB" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OperatingLeasesFutureMinimumPaymentsDueInTwoYears" xlink:label="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInTwoYears_8B971822764894BF37E355E2052F78B1" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDueAbstract_49A4097434D0F3474A0655E2052EF4D0" xlink:to="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInTwoYears_8B971822764894BF37E355E2052F78B1" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OperatingLeasesFutureMinimumPaymentsDueInThreeYears" xlink:label="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInThreeYears_0D854D63AB94B3266E9055E2052F0AA0" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDueAbstract_49A4097434D0F3474A0655E2052EF4D0" xlink:to="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInThreeYears_0D854D63AB94B3266E9055E2052F0AA0" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFourYears" xlink:label="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFourYears_63FEDFBCFE3F70B6B0FD55E2052F0CB0" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDueAbstract_49A4097434D0F3474A0655E2052EF4D0" xlink:to="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFourYears_63FEDFBCFE3F70B6B0FD55E2052F0CB0" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFiveYears" xlink:label="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFiveYears_984E247B37F96FF6E6CA55E2052F11CC" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDueAbstract_49A4097434D0F3474A0655E2052EF4D0" xlink:to="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFiveYears_984E247B37F96FF6E6CA55E2052F11CC" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OperatingLeasesFutureMinimumPaymentsDue" xlink:label="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDue_449F16E1F2B7FD052DFE55E20530735A" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDueAbstract_49A4097434D0F3474A0655E2052EF4D0" xlink:to="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDue_449F16E1F2B7FD052DFE55E20530735A" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://liquidityservices.com/role/CommitmentsTables" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LeasesOperatingAbstract" xlink:label="loc_us-gaap_LeasesOperatingAbstract_978D2AA6FB4DEF85967A86E5D757FAD8" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfFutureMinimumRentalPaymentsForOperatingLeasesTableTextBlock" xlink:label="loc_us-gaap_ScheduleOfFutureMinimumRentalPaymentsForOperatingLeasesTableTextBlock_D67D8F8B4FAC8D80F1D186E5D757989E" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LeasesOperatingAbstract_978D2AA6FB4DEF85967A86E5D757FAD8" xlink:to="loc_us-gaap_ScheduleOfFutureMinimumRentalPaymentsForOperatingLeasesTableTextBlock_D67D8F8B4FAC8D80F1D186E5D757989E" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://liquidityservices.com/role/ConsolidatedBalanceSheets" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StatementOfFinancialPositionAbstract" xlink:label="loc_us-gaap_StatementOfFinancialPositionAbstract_8BA25C0E9361F612BDE679B4C35023D5" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AssetsAbstract" xlink:label="loc_us-gaap_AssetsAbstract_5A8A0D24A0E1272ACD2779B4C350C03C" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfFinancialPositionAbstract_8BA25C0E9361F612BDE679B4C35023D5" xlink:to="loc_us-gaap_AssetsAbstract_5A8A0D24A0E1272ACD2779B4C350C03C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AssetsCurrentAbstract" xlink:label="loc_us-gaap_AssetsCurrentAbstract_8EA2BEF6D0544D81A79C79B4C350843E" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsAbstract_5A8A0D24A0E1272ACD2779B4C350C03C" xlink:to="loc_us-gaap_AssetsCurrentAbstract_8EA2BEF6D0544D81A79C79B4C350843E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CashAndCashEquivalentsAtCarryingValue" xlink:label="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_60C4F0B47568AF6654BF79B4C3519F59" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsCurrentAbstract_8EA2BEF6D0544D81A79C79B4C350843E" xlink:to="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_60C4F0B47568AF6654BF79B4C3519F59" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShortTermInvestments" xlink:label="loc_us-gaap_ShortTermInvestments_BC446DB3A7EC620B320779B4C3517B2A" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsCurrentAbstract_8EA2BEF6D0544D81A79C79B4C350843E" xlink:to="loc_us-gaap_ShortTermInvestments_BC446DB3A7EC620B320779B4C3517B2A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AccountsReceivableNetCurrent" xlink:label="loc_us-gaap_AccountsReceivableNetCurrent_BD66B00C5A5DB018A7E979B4C3513124" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsCurrentAbstract_8EA2BEF6D0544D81A79C79B4C350843E" xlink:to="loc_us-gaap_AccountsReceivableNetCurrent_BD66B00C5A5DB018A7E979B4C3513124" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_InventoryNet" xlink:label="loc_us-gaap_InventoryNet_69C116ED3D5417183C5079B4C3513115" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsCurrentAbstract_8EA2BEF6D0544D81A79C79B4C350843E" xlink:to="loc_us-gaap_InventoryNet_69C116ED3D5417183C5079B4C3513115" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PrepaidTaxes" xlink:label="loc_us-gaap_PrepaidTaxes_9085BF5F110E8630414679B4C352AE22" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsCurrentAbstract_8EA2BEF6D0544D81A79C79B4C350843E" xlink:to="loc_us-gaap_PrepaidTaxes_9085BF5F110E8630414679B4C352AE22" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PrepaidExpenseAndOtherAssetsCurrent" xlink:label="loc_us-gaap_PrepaidExpenseAndOtherAssetsCurrent_F77F34CF164149C9FE6179B4C352CA11" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsCurrentAbstract_8EA2BEF6D0544D81A79C79B4C350843E" xlink:to="loc_us-gaap_PrepaidExpenseAndOtherAssetsCurrent_F77F34CF164149C9FE6179B4C352CA11" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AssetsCurrent" xlink:label="loc_us-gaap_AssetsCurrent_8C82E57AB2308860ED0B79B4C352795C" xlink:type="locator" />
    <link:presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsCurrentAbstract_8EA2BEF6D0544D81A79C79B4C350843E" xlink:to="loc_us-gaap_AssetsCurrent_8C82E57AB2308860ED0B79B4C352795C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PropertyPlantAndEquipmentNet" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentNet_4CF3F91C1BF6F6FE8D8179B4C35266DF" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsAbstract_5A8A0D24A0E1272ACD2779B4C350C03C" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentNet_4CF3F91C1BF6F6FE8D8179B4C35266DF" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IntangibleAssetsNetExcludingGoodwill" xlink:label="loc_us-gaap_IntangibleAssetsNetExcludingGoodwill_B692F394C718B3F61C2679B4C3525726" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsAbstract_5A8A0D24A0E1272ACD2779B4C350C03C" xlink:to="loc_us-gaap_IntangibleAssetsNetExcludingGoodwill_B692F394C718B3F61C2679B4C3525726" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_Goodwill" xlink:label="loc_us-gaap_Goodwill_354A5C8F89531E6AA8DF79B4C3535FDA" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsAbstract_5A8A0D24A0E1272ACD2779B4C350C03C" xlink:to="loc_us-gaap_Goodwill_354A5C8F89531E6AA8DF79B4C3535FDA" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredIncomeTaxAssetsNet" xlink:label="loc_us-gaap_DeferredIncomeTaxAssetsNet_FB5B8D6DF17DDE89CC7279B4C3532952" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsAbstract_5A8A0D24A0E1272ACD2779B4C350C03C" xlink:to="loc_us-gaap_DeferredIncomeTaxAssetsNet_FB5B8D6DF17DDE89CC7279B4C3532952" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OtherAssetsNoncurrent" xlink:label="loc_us-gaap_OtherAssetsNoncurrent_1632A1EAB408B2F63B6779B4C353D769" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsAbstract_5A8A0D24A0E1272ACD2779B4C350C03C" xlink:to="loc_us-gaap_OtherAssetsNoncurrent_1632A1EAB408B2F63B6779B4C353D769" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_Assets" xlink:label="loc_us-gaap_Assets_1E156E7A61D62673D22479B4C353606E" xlink:type="locator" />
    <link:presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsAbstract_5A8A0D24A0E1272ACD2779B4C350C03C" xlink:to="loc_us-gaap_Assets_1E156E7A61D62673D22479B4C353606E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LiabilitiesAndStockholdersEquityAbstract" xlink:label="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_E96A82F5C5C1CE5E076A79B4C3537BD0" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfFinancialPositionAbstract_8BA25C0E9361F612BDE679B4C35023D5" xlink:to="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_E96A82F5C5C1CE5E076A79B4C3537BD0" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LiabilitiesCurrentAbstract" xlink:label="loc_us-gaap_LiabilitiesCurrentAbstract_3CD252CB9509C16D366479B4C3539D9B" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_E96A82F5C5C1CE5E076A79B4C3537BD0" xlink:to="loc_us-gaap_LiabilitiesCurrentAbstract_3CD252CB9509C16D366479B4C3539D9B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AccountsPayableCurrent" xlink:label="loc_us-gaap_AccountsPayableCurrent_7978478D3CD9EDABB96179B4C3545961" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesCurrentAbstract_3CD252CB9509C16D366479B4C3539D9B" xlink:to="loc_us-gaap_AccountsPayableCurrent_7978478D3CD9EDABB96179B4C3545961" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180930.xsd#lqdt_AccruedExpensesAndOtherCurrentLiabilities" xlink:label="loc_lqdt_AccruedExpensesAndOtherCurrentLiabilities_77AD5339BA84AAE2910B79B4C35407CC" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesCurrentAbstract_3CD252CB9509C16D366479B4C3539D9B" xlink:to="loc_lqdt_AccruedExpensesAndOtherCurrentLiabilities_77AD5339BA84AAE2910B79B4C35407CC" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180930.xsd#lqdt_ProfitSharingDistributionsPayable" xlink:label="loc_lqdt_ProfitSharingDistributionsPayable_89E64DA910984A40CBCF79B4C3542EFA" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesCurrentAbstract_3CD252CB9509C16D366479B4C3539D9B" xlink:to="loc_lqdt_ProfitSharingDistributionsPayable_89E64DA910984A40CBCF79B4C3542EFA" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ContractWithCustomerLiabilityCurrent" xlink:label="loc_us-gaap_ContractWithCustomerLiabilityCurrent_AE723DD7FB02834B38B579B4C355EE27" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesCurrentAbstract_3CD252CB9509C16D366479B4C3539D9B" xlink:to="loc_us-gaap_ContractWithCustomerLiabilityCurrent_AE723DD7FB02834B38B579B4C355EE27" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180930.xsd#lqdt_PayablesToSellersCurrent" xlink:label="loc_lqdt_PayablesToSellersCurrent_8AC935E49B78ED7AFB3D79B4C355C610" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesCurrentAbstract_3CD252CB9509C16D366479B4C3539D9B" xlink:to="loc_lqdt_PayablesToSellersCurrent_8AC935E49B78ED7AFB3D79B4C355C610" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LiabilitiesCurrent" xlink:label="loc_us-gaap_LiabilitiesCurrent_DDD6910A9D8CA86F4A6779B4C355741B" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" priority="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesCurrentAbstract_3CD252CB9509C16D366479B4C3539D9B" xlink:to="loc_us-gaap_LiabilitiesCurrent_DDD6910A9D8CA86F4A6779B4C355741B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredIncomeTaxesAndOtherLiabilitiesNoncurrent" xlink:label="loc_us-gaap_DeferredIncomeTaxesAndOtherLiabilitiesNoncurrent_8F2F533449AA4BEF568179B4C355AE08" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_E96A82F5C5C1CE5E076A79B4C3537BD0" xlink:to="loc_us-gaap_DeferredIncomeTaxesAndOtherLiabilitiesNoncurrent_8F2F533449AA4BEF568179B4C355AE08" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_Liabilities" xlink:label="loc_us-gaap_Liabilities_700667E9E98FD82A382C79B4C35511C0" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" priority="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_E96A82F5C5C1CE5E076A79B4C3537BD0" xlink:to="loc_us-gaap_Liabilities_700667E9E98FD82A382C79B4C35511C0" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CommitmentsAndContingencies" xlink:label="loc_us-gaap_CommitmentsAndContingencies_37DE4AA8C757ADA2C6C379B4C3553770" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_E96A82F5C5C1CE5E076A79B4C3537BD0" xlink:to="loc_us-gaap_CommitmentsAndContingencies_37DE4AA8C757ADA2C6C379B4C3553770" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StockholdersEquityAbstract" xlink:label="loc_us-gaap_StockholdersEquityAbstract_5E3BB87B6DF46046DE7A79B4C355C513" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_E96A82F5C5C1CE5E076A79B4C3537BD0" xlink:to="loc_us-gaap_StockholdersEquityAbstract_5E3BB87B6DF46046DE7A79B4C355C513" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CommonStockValue" xlink:label="loc_us-gaap_CommonStockValue_1B7403217FBC319E3CC479B4C3563612" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StockholdersEquityAbstract_5E3BB87B6DF46046DE7A79B4C355C513" xlink:to="loc_us-gaap_CommonStockValue_1B7403217FBC319E3CC479B4C3563612" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AdditionalPaidInCapitalCommonStock" xlink:label="loc_us-gaap_AdditionalPaidInCapitalCommonStock_5DDE2794B42E26E82CDC79B4C356B80F" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StockholdersEquityAbstract_5E3BB87B6DF46046DE7A79B4C355C513" xlink:to="loc_us-gaap_AdditionalPaidInCapitalCommonStock_5DDE2794B42E26E82CDC79B4C356B80F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_2E60E9E1FA92D45C8A6B79B4C356732C" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StockholdersEquityAbstract_5E3BB87B6DF46046DE7A79B4C355C513" xlink:to="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_2E60E9E1FA92D45C8A6B79B4C356732C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RetainedEarningsAccumulatedDeficit" xlink:label="loc_us-gaap_RetainedEarningsAccumulatedDeficit_27D86D116BBBB39DFDBB79B4C3560317" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StockholdersEquityAbstract_5E3BB87B6DF46046DE7A79B4C355C513" xlink:to="loc_us-gaap_RetainedEarningsAccumulatedDeficit_27D86D116BBBB39DFDBB79B4C3560317" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StockholdersEquity" xlink:label="loc_us-gaap_StockholdersEquity_A70C452A34DD9661A55C79B4C3577181" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StockholdersEquityAbstract_5E3BB87B6DF46046DE7A79B4C355C513" xlink:to="loc_us-gaap_StockholdersEquity_A70C452A34DD9661A55C79B4C3577181" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LiabilitiesAndStockholdersEquity" xlink:label="loc_us-gaap_LiabilitiesAndStockholdersEquity_067CB4DE17BF9996F21F79B4C357E69B" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_E96A82F5C5C1CE5E076A79B4C3537BD0" xlink:to="loc_us-gaap_LiabilitiesAndStockholdersEquity_067CB4DE17BF9996F21F79B4C357E69B" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://liquidityservices.com/role/ConsolidatedBalanceSheetsParenthetical" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StatementOfFinancialPositionAbstract" xlink:label="loc_us-gaap_StatementOfFinancialPositionAbstract_EE6EF172B48C88CAFF1DEAAFBC5EE0FC" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent" xlink:label="loc_us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent_3196B8A011D13B51EBA1EAAFBC5FB9D4" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfFinancialPositionAbstract_EE6EF172B48C88CAFF1DEAAFBC5EE0FC" xlink:to="loc_us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent_3196B8A011D13B51EBA1EAAFBC5FB9D4" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CommonStockParOrStatedValuePerShare" xlink:label="loc_us-gaap_CommonStockParOrStatedValuePerShare_4317994983FBE1355EA3EAAFBC5FD746" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfFinancialPositionAbstract_EE6EF172B48C88CAFF1DEAAFBC5EE0FC" xlink:to="loc_us-gaap_CommonStockParOrStatedValuePerShare_4317994983FBE1355EA3EAAFBC5FD746" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CommonStockSharesAuthorized" xlink:label="loc_us-gaap_CommonStockSharesAuthorized_50B87803D5107C24C958EAAFBC60910E" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfFinancialPositionAbstract_EE6EF172B48C88CAFF1DEAAFBC5EE0FC" xlink:to="loc_us-gaap_CommonStockSharesAuthorized_50B87803D5107C24C958EAAFBC60910E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CommonStockSharesIssued" xlink:label="loc_us-gaap_CommonStockSharesIssued_3EF1FD6967B7F5FA1474EAAFBC604109" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfFinancialPositionAbstract_EE6EF172B48C88CAFF1DEAAFBC5EE0FC" xlink:to="loc_us-gaap_CommonStockSharesIssued_3EF1FD6967B7F5FA1474EAAFBC604109" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CommonStockSharesOutstanding" xlink:label="loc_us-gaap_CommonStockSharesOutstanding_5AAD7A2C092250794BF8EAAFBC603A3E" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfFinancialPositionAbstract_EE6EF172B48C88CAFF1DEAAFBC5EE0FC" xlink:to="loc_us-gaap_CommonStockSharesOutstanding_5AAD7A2C092250794BF8EAAFBC603A3E" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://liquidityservices.com/role/ConsolidatedStatementsOfCashFlows" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StatementOfCashFlowsAbstract" xlink:label="loc_us-gaap_StatementOfCashFlowsAbstract_02A111C041C5C555108A83D512DB4EB3" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract" xlink:label="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_CD8D2380A6B3FB8D2FA883D512DEE217" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfCashFlowsAbstract_02A111C041C5C555108A83D512DB4EB3" xlink:to="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_CD8D2380A6B3FB8D2FA883D512DEE217" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic" xlink:label="loc_us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic_08B10DE241B1EC36CCCD83D512E2580B" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="9" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_CD8D2380A6B3FB8D2FA883D512DEE217" xlink:to="loc_us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic_08B10DE241B1EC36CCCD83D512E2580B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract" xlink:label="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_22D6918E9051F9A416F183D512E32805" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_CD8D2380A6B3FB8D2FA883D512DEE217" xlink:to="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_22D6918E9051F9A416F183D512E32805" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DepreciationDepletionAndAmortization" xlink:label="loc_us-gaap_DepreciationDepletionAndAmortization_6DC52F2558FDFACB054183D512E3F3CC" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_22D6918E9051F9A416F183D512E32805" xlink:to="loc_us-gaap_DepreciationDepletionAndAmortization_6DC52F2558FDFACB054183D512E3F3CC" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability1" xlink:label="loc_us-gaap_BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability1_F6B36DBA9AAD623DFA3483D512E3C38A" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_22D6918E9051F9A416F183D512E32805" xlink:to="loc_us-gaap_BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability1_F6B36DBA9AAD623DFA3483D512E3C38A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensation" xlink:label="loc_us-gaap_ShareBasedCompensation_ADE6B349D40E7D1EB5E483D512E43541" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_22D6918E9051F9A416F183D512E32805" xlink:to="loc_us-gaap_ShareBasedCompensation_ADE6B349D40E7D1EB5E483D512E43541" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_InventoryWriteDown" xlink:label="loc_us-gaap_InventoryWriteDown_5F2F259E1D2B8370051B83D512E461DA" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_22D6918E9051F9A416F183D512E32805" xlink:to="loc_us-gaap_InventoryWriteDown_5F2F259E1D2B8370051B83D512E461DA" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ProvisionForDoubtfulAccounts" xlink:label="loc_us-gaap_ProvisionForDoubtfulAccounts_6D8A903E8B6B4B73417C83D512E41331" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_22D6918E9051F9A416F183D512E32805" xlink:to="loc_us-gaap_ProvisionForDoubtfulAccounts_6D8A903E8B6B4B73417C83D512E41331" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredIncomeTaxExpenseBenefit" xlink:label="loc_us-gaap_DeferredIncomeTaxExpenseBenefit_E40AEB02837C800F255C83D512E4F24D" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_22D6918E9051F9A416F183D512E32805" xlink:to="loc_us-gaap_DeferredIncomeTaxExpenseBenefit_E40AEB02837C800F255C83D512E4F24D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AssetImpairmentCharges" xlink:label="loc_us-gaap_AssetImpairmentCharges_FDB6020571FD941B237B83D512E54FC2" xlink:type="locator" />
    <link:presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_22D6918E9051F9A416F183D512E32805" xlink:to="loc_us-gaap_AssetImpairmentCharges_FDB6020571FD941B237B83D512E54FC2" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FairValueAssetsMeasuredOnRecurringBasisChangeInUnrealizedGainLoss" xlink:label="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisChangeInUnrealizedGainLoss_0C15EA45FB0E7DA9527383D512E51194" xlink:type="locator" />
    <link:presentationArc order="8" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_22D6918E9051F9A416F183D512E32805" xlink:to="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisChangeInUnrealizedGainLoss_0C15EA45FB0E7DA9527383D512E51194" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180930.xsd#lqdt_ExcessTaxCostFromShareBasedCompensationOperatingActivities" xlink:label="loc_lqdt_ExcessTaxCostFromShareBasedCompensationOperatingActivities_76E82AFAABA2D5982CE783D512E52684" xlink:type="locator" />
    <link:presentationArc order="9" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" priority="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_22D6918E9051F9A416F183D512E32805" xlink:to="loc_lqdt_ExcessTaxCostFromShareBasedCompensationOperatingActivities_76E82AFAABA2D5982CE783D512E52684" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_GainLossOnSaleOfPropertyPlantEquipment" xlink:label="loc_us-gaap_GainLossOnSaleOfPropertyPlantEquipment_4A74856A3F1FAF3131AC83D512E5EE60" xlink:type="locator" />
    <link:presentationArc order="10" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_22D6918E9051F9A416F183D512E32805" xlink:to="loc_us-gaap_GainLossOnSaleOfPropertyPlantEquipment_4A74856A3F1FAF3131AC83D512E5EE60" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncreaseDecreaseInOperatingCapitalAbstract" xlink:label="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_0FBB80B95F5A72943AF683D512E579DD" xlink:type="locator" />
    <link:presentationArc order="11" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_22D6918E9051F9A416F183D512E32805" xlink:to="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_0FBB80B95F5A72943AF683D512E579DD" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncreaseDecreaseInAccountsReceivable" xlink:label="loc_us-gaap_IncreaseDecreaseInAccountsReceivable_5510A1A05A5DCBE312FB83D512E66768" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_0FBB80B95F5A72943AF683D512E579DD" xlink:to="loc_us-gaap_IncreaseDecreaseInAccountsReceivable_5510A1A05A5DCBE312FB83D512E66768" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncreaseDecreaseInInventories" xlink:label="loc_us-gaap_IncreaseDecreaseInInventories_45CD918940EBF5E1CA6683D512E669EA" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_0FBB80B95F5A72943AF683D512E579DD" xlink:to="loc_us-gaap_IncreaseDecreaseInInventories_45CD918940EBF5E1CA6683D512E669EA" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180930.xsd#lqdt_IncreaseDecreaseInPrepaidExpensesAndDeferredTaxes" xlink:label="loc_lqdt_IncreaseDecreaseInPrepaidExpensesAndDeferredTaxes_606F3B06A4B45594A5E683D512E697E4" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" priority="9" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_0FBB80B95F5A72943AF683D512E579DD" xlink:to="loc_lqdt_IncreaseDecreaseInPrepaidExpensesAndDeferredTaxes_606F3B06A4B45594A5E683D512E697E4" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets" xlink:label="loc_us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets_10C1EFE87BBBE5A2298A83D512E6D1A0" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_0FBB80B95F5A72943AF683D512E579DD" xlink:to="loc_us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets_10C1EFE87BBBE5A2298A83D512E6D1A0" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncreaseDecreaseInAccountsPayable" xlink:label="loc_us-gaap_IncreaseDecreaseInAccountsPayable_174D60690A23EA73E2A883D512E7FF14" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_0FBB80B95F5A72943AF683D512E579DD" xlink:to="loc_us-gaap_IncreaseDecreaseInAccountsPayable_174D60690A23EA73E2A883D512E7FF14" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncreaseDecreaseInOtherAccruedLiabilities" xlink:label="loc_us-gaap_IncreaseDecreaseInOtherAccruedLiabilities_519F84D5E5985BF463A483D512E704FF" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_0FBB80B95F5A72943AF683D512E579DD" xlink:to="loc_us-gaap_IncreaseDecreaseInOtherAccruedLiabilities_519F84D5E5985BF463A483D512E704FF" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180930.xsd#lqdt_IncreaseDecreaseInProfitSharingDistributionsPayable" xlink:label="loc_lqdt_IncreaseDecreaseInProfitSharingDistributionsPayable_74DC6D61507EA536D8C083D512E78F93" xlink:type="locator" />
    <link:presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_0FBB80B95F5A72943AF683D512E579DD" xlink:to="loc_lqdt_IncreaseDecreaseInProfitSharingDistributionsPayable_74DC6D61507EA536D8C083D512E78F93" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180930.xsd#lqdt_IncreaseDecreaseInContractWithCustomerLiability" xlink:label="loc_lqdt_IncreaseDecreaseInContractWithCustomerLiability_C4AC14E24523FC85065283D512E7A350" xlink:type="locator" />
    <link:presentationArc order="8" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_0FBB80B95F5A72943AF683D512E579DD" xlink:to="loc_lqdt_IncreaseDecreaseInContractWithCustomerLiability_C4AC14E24523FC85065283D512E7A350" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180930.xsd#lqdt_IncreaseDecreaseInPayablesToSellers" xlink:label="loc_lqdt_IncreaseDecreaseInPayablesToSellers_64C2C01CC0840FD9F05D83D512E76F09" xlink:type="locator" />
    <link:presentationArc order="9" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_0FBB80B95F5A72943AF683D512E579DD" xlink:to="loc_lqdt_IncreaseDecreaseInPayablesToSellers_64C2C01CC0840FD9F05D83D512E76F09" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncreaseDecreaseInOtherOperatingLiabilities" xlink:label="loc_us-gaap_IncreaseDecreaseInOtherOperatingLiabilities_9DF8417EC22A0A80747083D512E84CD6" xlink:type="locator" />
    <link:presentationArc order="10" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_0FBB80B95F5A72943AF683D512E579DD" xlink:to="loc_us-gaap_IncreaseDecreaseInOtherOperatingLiabilities_9DF8417EC22A0A80747083D512E84CD6" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:label="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_9CB190BFABA11F6B9EAA83D512E89A53" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" priority="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_CD8D2380A6B3FB8D2FA883D512DEE217" xlink:to="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_9CB190BFABA11F6B9EAA83D512E89A53" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperationsAbstract" xlink:label="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperationsAbstract_A6845D976D24BAD642D483D512E8F67A" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfCashFlowsAbstract_02A111C041C5C555108A83D512DB4EB3" xlink:to="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperationsAbstract_A6845D976D24BAD642D483D512E8F67A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncreaseDecreaseInIntangibleAssetsCurrent" xlink:label="loc_us-gaap_IncreaseDecreaseInIntangibleAssetsCurrent_0FB712767DAB89606A3C83D512E83A75" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperationsAbstract_A6845D976D24BAD642D483D512E8F67A" xlink:to="loc_us-gaap_IncreaseDecreaseInIntangibleAssetsCurrent_0FB712767DAB89606A3C83D512E83A75" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PaymentsToAcquirePropertyPlantAndEquipment" xlink:label="loc_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_40F35C56DD9DE97A547E83D512E9BE15" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" priority="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperationsAbstract_A6845D976D24BAD642D483D512E8F67A" xlink:to="loc_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_40F35C56DD9DE97A547E83D512E9BE15" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ProceedsFromSaleAndCollectionOfNotesReceivable" xlink:label="loc_us-gaap_ProceedsFromSaleAndCollectionOfNotesReceivable_7AFC93F70283F8BCA12D83D5130C2A66" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperationsAbstract_A6845D976D24BAD642D483D512E8F67A" xlink:to="loc_us-gaap_ProceedsFromSaleAndCollectionOfNotesReceivable_7AFC93F70283F8BCA12D83D5130C2A66" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ProceedsFromSaleOfPropertyPlantAndEquipment" xlink:label="loc_us-gaap_ProceedsFromSaleOfPropertyPlantAndEquipment_4B8E080F0803D9A130F983D512E91AD0" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperationsAbstract_A6845D976D24BAD642D483D512E8F67A" xlink:to="loc_us-gaap_ProceedsFromSaleOfPropertyPlantAndEquipment_4B8E080F0803D9A130F983D512E91AD0" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PaymentsToAcquireShortTermInvestments" xlink:label="loc_us-gaap_PaymentsToAcquireShortTermInvestments_E2BB9D3EE6765C7F454683D512E97F06" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperationsAbstract_A6845D976D24BAD642D483D512E8F67A" xlink:to="loc_us-gaap_PaymentsToAcquireShortTermInvestments_E2BB9D3EE6765C7F454683D512E97F06" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired" xlink:label="loc_us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired_98203CE74000E99290AC83D512E92724" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperationsAbstract_A6845D976D24BAD642D483D512E8F67A" xlink:to="loc_us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired_98203CE74000E99290AC83D512E92724" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivities" xlink:label="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_8576AC40DA3FC082E34A83D512EA262B" xlink:type="locator" />
    <link:presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperationsAbstract_A6845D976D24BAD642D483D512E8F67A" xlink:to="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_8576AC40DA3FC082E34A83D512EA262B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperationsAbstract" xlink:label="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperationsAbstract_EFF64757732E0D507D1F83D512EA6E8A" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfCashFlowsAbstract_02A111C041C5C555108A83D512DB4EB3" xlink:to="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperationsAbstract_EFF64757732E0D507D1F83D512EA6E8A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ProceedsFromStockOptionsExercised" xlink:label="loc_us-gaap_ProceedsFromStockOptionsExercised_D9A5B57CBE6556AFA9B983D512EAD6C0" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperationsAbstract_EFF64757732E0D507D1F83D512EA6E8A" xlink:to="loc_us-gaap_ProceedsFromStockOptionsExercised_D9A5B57CBE6556AFA9B983D512EAD6C0" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ExcessTaxBenefitFromShareBasedCompensationFinancingActivities" xlink:label="loc_us-gaap_ExcessTaxBenefitFromShareBasedCompensationFinancingActivities_DE1760ECCF9D2851445883D512EAD574" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="9" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperationsAbstract_EFF64757732E0D507D1F83D512EA6E8A" xlink:to="loc_us-gaap_ExcessTaxBenefitFromShareBasedCompensationFinancingActivities_DE1760ECCF9D2851445883D512EAD574" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivities" xlink:label="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_7BA6277B8E7CFE60957483D512EA70D2" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" priority="9" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperationsAbstract_EFF64757732E0D507D1F83D512EA6E8A" xlink:to="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_7BA6277B8E7CFE60957483D512EA70D2" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EffectOfExchangeRateOnCashAndCashEquivalents" xlink:label="loc_us-gaap_EffectOfExchangeRateOnCashAndCashEquivalents_2341333F782E9250A73883D512EB980F" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfCashFlowsAbstract_02A111C041C5C555108A83D512DB4EB3" xlink:to="loc_us-gaap_EffectOfExchangeRateOnCashAndCashEquivalents_2341333F782E9250A73883D512EB980F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease" xlink:label="loc_us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease_A41BA182A0902E8DC67883D512EB6719" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfCashFlowsAbstract_02A111C041C5C555108A83D512DB4EB3" xlink:to="loc_us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease_A41BA182A0902E8DC67883D512EB6719" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CashAndCashEquivalentsAtCarryingValue" xlink:label="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_9DA89F5B01FCB913288E83D512EB3B42" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/periodStartLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfCashFlowsAbstract_02A111C041C5C555108A83D512DB4EB3" xlink:to="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_9DA89F5B01FCB913288E83D512EB3B42" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CashAndCashEquivalentsAtCarryingValue" xlink:label="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_1A76622D1466BA6ADEF583D512EB8E57" xlink:type="locator" />
    <link:presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/periodEndLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfCashFlowsAbstract_02A111C041C5C555108A83D512DB4EB3" xlink:to="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_1A76622D1466BA6ADEF583D512EB8E57" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SupplementalCashFlowInformationAbstract" xlink:label="loc_us-gaap_SupplementalCashFlowInformationAbstract_D7FCDFA66B28872E8E4E83D512EC6F68" xlink:type="locator" />
    <link:presentationArc order="8" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfCashFlowsAbstract_02A111C041C5C555108A83D512DB4EB3" xlink:to="loc_us-gaap_SupplementalCashFlowInformationAbstract_D7FCDFA66B28872E8E4E83D512EC6F68" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180930.xsd#lqdt_NoncashOrPartNoncashAcquisitionContingentConsiderationLiability" xlink:label="loc_lqdt_NoncashOrPartNoncashAcquisitionContingentConsiderationLiability_8E4BC85C0CFFB6AA091D83DCBE6BDED2" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SupplementalCashFlowInformationAbstract_D7FCDFA66B28872E8E4E83D512EC6F68" xlink:to="loc_lqdt_NoncashOrPartNoncashAcquisitionContingentConsiderationLiability_8E4BC85C0CFFB6AA091D83DCBE6BDED2" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StockIssued1" xlink:label="loc_us-gaap_StockIssued1_47F12D3338A9BB18EDD683DA54518468" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SupplementalCashFlowInformationAbstract_D7FCDFA66B28872E8E4E83D512EC6F68" xlink:to="loc_us-gaap_StockIssued1_47F12D3338A9BB18EDD683DA54518468" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeTaxesPaidNet" xlink:label="loc_us-gaap_IncomeTaxesPaidNet_0420A1C0AF487874F91F83D512ECF3AD" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel" priority="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SupplementalCashFlowInformationAbstract_D7FCDFA66B28872E8E4E83D512EC6F68" xlink:to="loc_us-gaap_IncomeTaxesPaidNet_0420A1C0AF487874F91F83D512ECF3AD" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://liquidityservices.com/role/ConsolidatedStatementsOfComprehensiveLossIncome" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StatementOfIncomeAndComprehensiveIncomeAbstract" xlink:label="loc_us-gaap_StatementOfIncomeAndComprehensiveIncomeAbstract_2B22EB501C01132D69EB559BB1DABC76" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic" xlink:label="loc_us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic_C80110C3F84D2CED5CBF559BB1DAA7C7" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfIncomeAndComprehensiveIncomeAbstract_2B22EB501C01132D69EB559BB1DABC76" xlink:to="loc_us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic_C80110C3F84D2CED5CBF559BB1DAA7C7" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecreaseAbstract" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecreaseAbstract_47BF8A8FA1F5628A099D559BB1DAE98B" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfIncomeAndComprehensiveIncomeAbstract_2B22EB501C01132D69EB559BB1DABC76" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecreaseAbstract_47BF8A8FA1F5628A099D559BB1DAE98B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPortionAttributableToParent" xlink:label="loc_us-gaap_OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPortionAttributableToParent_698D522D3B3430111D41559BB1DA7F20" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" priority="8" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecreaseAbstract_47BF8A8FA1F5628A099D559BB1DAE98B" xlink:to="loc_us-gaap_OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPortionAttributableToParent_698D522D3B3430111D41559BB1DA7F20" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent" xlink:label="loc_us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent_B3C7232247E4A05F63E1559BB1DBACDE" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecreaseAbstract_47BF8A8FA1F5628A099D559BB1DAE98B" xlink:to="loc_us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent_B3C7232247E4A05F63E1559BB1DBACDE" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent_D066C11C7E749A541CC7559BB1DB9EB1" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecreaseAbstract_47BF8A8FA1F5628A099D559BB1DAE98B" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent_D066C11C7E749A541CC7559BB1DB9EB1" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ComprehensiveIncomeNetOfTax" xlink:label="loc_us-gaap_ComprehensiveIncomeNetOfTax_9BF0B88E55A36131C990559BB1DBAD58" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfIncomeAndComprehensiveIncomeAbstract_2B22EB501C01132D69EB559BB1DABC76" xlink:to="loc_us-gaap_ComprehensiveIncomeNetOfTax_9BF0B88E55A36131C990559BB1DBAD58" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://liquidityservices.com/role/ConsolidatedStatementsOfOperations" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeStatementAbstract" xlink:label="loc_us-gaap_IncomeStatementAbstract_902B33EBFCA5C2F6B3B20962CAC1831B" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SalesRevenueGoodsNet" xlink:label="loc_us-gaap_SalesRevenueGoodsNet_457E83753D5CBA22E1D50962CAC1A02A" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementAbstract_902B33EBFCA5C2F6B3B20962CAC1831B" xlink:to="loc_us-gaap_SalesRevenueGoodsNet_457E83753D5CBA22E1D50962CAC1A02A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SalesRevenueServicesNet" xlink:label="loc_us-gaap_SalesRevenueServicesNet_547F677BC5F23F74C7F70962CAC296ED" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementAbstract_902B33EBFCA5C2F6B3B20962CAC1831B" xlink:to="loc_us-gaap_SalesRevenueServicesNet_547F677BC5F23F74C7F70962CAC296ED" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SalesRevenueNet" xlink:label="loc_us-gaap_SalesRevenueNet_E51BA4E81EC36050CCFB0962CAC258A0" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementAbstract_902B33EBFCA5C2F6B3B20962CAC1831B" xlink:to="loc_us-gaap_SalesRevenueNet_E51BA4E81EC36050CCFB0962CAC258A0" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CostsAndExpensesAbstract" xlink:label="loc_us-gaap_CostsAndExpensesAbstract_3895201AE6BFBE45FF400962CAC22F73" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementAbstract_902B33EBFCA5C2F6B3B20962CAC1831B" xlink:to="loc_us-gaap_CostsAndExpensesAbstract_3895201AE6BFBE45FF400962CAC22F73" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CostOfGoodsSoldExcludingDepreciationDepletionAndAmortization" xlink:label="loc_us-gaap_CostOfGoodsSoldExcludingDepreciationDepletionAndAmortization_5B24DB071512DF7218870962CAC3D2F1" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CostsAndExpensesAbstract_3895201AE6BFBE45FF400962CAC22F73" xlink:to="loc_us-gaap_CostOfGoodsSoldExcludingDepreciationDepletionAndAmortization_5B24DB071512DF7218870962CAC3D2F1" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ProductionAndDistributionCosts" xlink:label="loc_us-gaap_ProductionAndDistributionCosts_C218D4E0CDF5A94667C80962CAC3A4AB" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CostsAndExpensesAbstract_3895201AE6BFBE45FF400962CAC22F73" xlink:to="loc_us-gaap_ProductionAndDistributionCosts_C218D4E0CDF5A94667C80962CAC3A4AB" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180930.xsd#lqdt_TechnologyAndOperationsExpense" xlink:label="loc_lqdt_TechnologyAndOperationsExpense_EBF8F1646D8280E0DB990962CAC3F1BF" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CostsAndExpensesAbstract_3895201AE6BFBE45FF400962CAC22F73" xlink:to="loc_lqdt_TechnologyAndOperationsExpense_EBF8F1646D8280E0DB990962CAC3F1BF" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SellingAndMarketingExpense" xlink:label="loc_us-gaap_SellingAndMarketingExpense_1943131AF33F79033F500962CAC3ACB8" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CostsAndExpensesAbstract_3895201AE6BFBE45FF400962CAC22F73" xlink:to="loc_us-gaap_SellingAndMarketingExpense_1943131AF33F79033F500962CAC3ACB8" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_GeneralAndAdministrativeExpense" xlink:label="loc_us-gaap_GeneralAndAdministrativeExpense_F8400595A48FF16580A30962CAC3FC57" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CostsAndExpensesAbstract_3895201AE6BFBE45FF400962CAC22F73" xlink:to="loc_us-gaap_GeneralAndAdministrativeExpense_F8400595A48FF16580A30962CAC3FC57" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DepreciationDepletionAndAmortization" xlink:label="loc_us-gaap_DepreciationDepletionAndAmortization_44B3B798DFDC03D46CC30962CAC44087" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CostsAndExpensesAbstract_3895201AE6BFBE45FF400962CAC22F73" xlink:to="loc_us-gaap_DepreciationDepletionAndAmortization_44B3B798DFDC03D46CC30962CAC44087" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180930.xsd#lqdt_ImpairmentOfGoodwillAndLongLivedAssetsAcquisitionCostsAndFairValueAdjustments" xlink:label="loc_lqdt_ImpairmentOfGoodwillAndLongLivedAssetsAcquisitionCostsAndFairValueAdjustments_97A009CDF3A96FF462D80962CAC48D3A" xlink:type="locator" />
    <link:presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CostsAndExpensesAbstract_3895201AE6BFBE45FF400962CAC22F73" xlink:to="loc_lqdt_ImpairmentOfGoodwillAndLongLivedAssetsAcquisitionCostsAndFairValueAdjustments_97A009CDF3A96FF462D80962CAC48D3A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OtherCostAndExpenseOperating" xlink:label="loc_us-gaap_OtherCostAndExpenseOperating_40CDD6C842ACA3A799CA0962CAC439FF" xlink:type="locator" />
    <link:presentationArc order="8" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CostsAndExpensesAbstract_3895201AE6BFBE45FF400962CAC22F73" xlink:to="loc_us-gaap_OtherCostAndExpenseOperating_40CDD6C842ACA3A799CA0962CAC439FF" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CostsAndExpenses" xlink:label="loc_us-gaap_CostsAndExpenses_710109F9F1C605D9F67B0962CAC448C7" xlink:type="locator" />
    <link:presentationArc order="9" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CostsAndExpensesAbstract_3895201AE6BFBE45FF400962CAC22F73" xlink:to="loc_us-gaap_CostsAndExpenses_710109F9F1C605D9F67B0962CAC448C7" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OperatingIncomeLoss" xlink:label="loc_us-gaap_OperatingIncomeLoss_182595340B281A93ED450962CAC56C35" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementAbstract_902B33EBFCA5C2F6B3B20962CAC1831B" xlink:to="loc_us-gaap_OperatingIncomeLoss_182595340B281A93ED450962CAC56C35" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_InterestIncomeExpenseNet" xlink:label="loc_us-gaap_InterestIncomeExpenseNet_056FA5786C42A9DEAB330962CAC55894" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementAbstract_902B33EBFCA5C2F6B3B20962CAC1831B" xlink:to="loc_us-gaap_InterestIncomeExpenseNet_056FA5786C42A9DEAB330962CAC55894" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments_F86704F89E19E7BDF9170962CAC5B94A" xlink:type="locator" />
    <link:presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementAbstract_902B33EBFCA5C2F6B3B20962CAC1831B" xlink:to="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments_F86704F89E19E7BDF9170962CAC5B94A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeTaxExpenseBenefit" xlink:label="loc_us-gaap_IncomeTaxExpenseBenefit_3A0BC29C284D57A90FE60962CAC5C4D4" xlink:type="locator" />
    <link:presentationArc order="8" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementAbstract_902B33EBFCA5C2F6B3B20962CAC1831B" xlink:to="loc_us-gaap_IncomeTaxExpenseBenefit_3A0BC29C284D57A90FE60962CAC5C4D4" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic" xlink:label="loc_us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic_3FB4744835E1CA1B691E0962CAC5D5B8" xlink:type="locator" />
    <link:presentationArc order="9" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementAbstract_902B33EBFCA5C2F6B3B20962CAC1831B" xlink:to="loc_us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic_3FB4744835E1CA1B691E0962CAC5D5B8" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EarningsPerShareBasicAndDiluted" xlink:label="loc_us-gaap_EarningsPerShareBasicAndDiluted_8951035763976DD24A9F0962CAC62875" xlink:type="locator" />
    <link:presentationArc order="10" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementAbstract_902B33EBFCA5C2F6B3B20962CAC1831B" xlink:to="loc_us-gaap_EarningsPerShareBasicAndDiluted_8951035763976DD24A9F0962CAC62875" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_WeightedAverageNumberOfShareOutstandingBasicAndDiluted" xlink:label="loc_us-gaap_WeightedAverageNumberOfShareOutstandingBasicAndDiluted_64166CC629FA2B3547890962CAC60129" xlink:type="locator" />
    <link:presentationArc order="11" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementAbstract_902B33EBFCA5C2F6B3B20962CAC1831B" xlink:to="loc_us-gaap_WeightedAverageNumberOfShareOutstandingBasicAndDiluted_64166CC629FA2B3547890962CAC60129" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://liquidityservices.com/role/ConsolidatedStatementsOfStockholdersEquity" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StatementOfStockholdersEquityAbstract" xlink:label="loc_us-gaap_StatementOfStockholdersEquityAbstract_ED7CA56E54C3212129E3845A03DF31A0" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StatementTable" xlink:label="loc_us-gaap_StatementTable_FD90DE6ADA504E6449F3845A03DF495A" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfStockholdersEquityAbstract_ED7CA56E54C3212129E3845A03DF31A0" xlink:to="loc_us-gaap_StatementTable_FD90DE6ADA504E6449F3845A03DF495A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StatementEquityComponentsAxis" xlink:label="loc_us-gaap_StatementEquityComponentsAxis_43647B0C9E8D6FB1D176845A03DF7E00" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementTable_FD90DE6ADA504E6449F3845A03DF495A" xlink:to="loc_us-gaap_StatementEquityComponentsAxis_43647B0C9E8D6FB1D176845A03DF7E00" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EquityComponentDomain" xlink:label="loc_us-gaap_EquityComponentDomain_C06C82A2CF388E9ABD81845A03DFA7D8" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementEquityComponentsAxis_43647B0C9E8D6FB1D176845A03DF7E00" xlink:to="loc_us-gaap_EquityComponentDomain_C06C82A2CF388E9ABD81845A03DFA7D8" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CommonStockMember" xlink:label="loc_us-gaap_CommonStockMember_54D58849A7B9B11F5E04845A03E0DF56" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityComponentDomain_C06C82A2CF388E9ABD81845A03DFA7D8" xlink:to="loc_us-gaap_CommonStockMember_54D58849A7B9B11F5E04845A03E0DF56" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AdditionalPaidInCapitalMember" xlink:label="loc_us-gaap_AdditionalPaidInCapitalMember_4763AEE60C2C342EFC90845A03E044A4" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityComponentDomain_C06C82A2CF388E9ABD81845A03DFA7D8" xlink:to="loc_us-gaap_AdditionalPaidInCapitalMember_4763AEE60C2C342EFC90845A03E044A4" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeMember" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeMember_447E2286E110532ED296845A03E05C89" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityComponentDomain_C06C82A2CF388E9ABD81845A03DFA7D8" xlink:to="loc_us-gaap_AccumulatedOtherComprehensiveIncomeMember_447E2286E110532ED296845A03E05C89" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RetainedEarningsMember" xlink:label="loc_us-gaap_RetainedEarningsMember_7AEA97E69C55AF9BC807845A03E1D2D5" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityComponentDomain_C06C82A2CF388E9ABD81845A03DFA7D8" xlink:to="loc_us-gaap_RetainedEarningsMember_7AEA97E69C55AF9BC807845A03E1D2D5" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StatementLineItems" xlink:label="loc_us-gaap_StatementLineItems_D1276962BAE52F852CE8845A03E18A1E" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementTable_FD90DE6ADA504E6449F3845A03DF495A" xlink:to="loc_us-gaap_StatementLineItems_D1276962BAE52F852CE8845A03E18A1E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncreaseDecreaseInStockholdersEquityRollForward" xlink:label="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_F1E6BC62D2574536FC6B845A03E18CA7" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_D1276962BAE52F852CE8845A03E18A1E" xlink:to="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_F1E6BC62D2574536FC6B845A03E18CA7" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SharesIssued" xlink:label="loc_us-gaap_SharesIssued_B83E77BD9624A0BE187A845A03E145B6" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/periodStartLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_F1E6BC62D2574536FC6B845A03E18CA7" xlink:to="loc_us-gaap_SharesIssued_B83E77BD9624A0BE187A845A03E145B6" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StockholdersEquity" xlink:label="loc_us-gaap_StockholdersEquity_96C4D800F1B7FC1A3199845A03E2E581" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/periodStartLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_F1E6BC62D2574536FC6B845A03E18CA7" xlink:to="loc_us-gaap_StockholdersEquity_96C4D800F1B7FC1A3199845A03E2E581" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StockIssuedDuringPeriodSharesShareBasedCompensation" xlink:label="loc_us-gaap_StockIssuedDuringPeriodSharesShareBasedCompensation_DF239E37390B0C810AFA845A03E2105B" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_F1E6BC62D2574536FC6B845A03E18CA7" xlink:to="loc_us-gaap_StockIssuedDuringPeriodSharesShareBasedCompensation_DF239E37390B0C810AFA845A03E2105B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StockIssuedDuringPeriodValueShareBasedCompensation" xlink:label="loc_us-gaap_StockIssuedDuringPeriodValueShareBasedCompensation_CCB1DF9EC7E9E3B078B2845A03E29C38" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_F1E6BC62D2574536FC6B845A03E18CA7" xlink:to="loc_us-gaap_StockIssuedDuringPeriodValueShareBasedCompensation_CCB1DF9EC7E9E3B078B2845A03E29C38" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180930.xsd#lqdt_AdjustmentToAdditionalPaidInCapitalShareBasedCompensationRequisiteServicePeriodRecognitionValueAndIncomeTaxEffectFromShareBasedCompensationNet" xlink:label="loc_lqdt_AdjustmentToAdditionalPaidInCapitalShareBasedCompensationRequisiteServicePeriodRecognitionValueAndIncomeTaxEffectFromShareBasedCompensationNet_AC4CB655067D0FEE3A20845A03E20A74" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_F1E6BC62D2574536FC6B845A03E18CA7" xlink:to="loc_lqdt_AdjustmentToAdditionalPaidInCapitalShareBasedCompensationRequisiteServicePeriodRecognitionValueAndIncomeTaxEffectFromShareBasedCompensationNet_AC4CB655067D0FEE3A20845A03E20A74" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StockIssuedDuringPeriodSharesAcquisitions" xlink:label="loc_us-gaap_StockIssuedDuringPeriodSharesAcquisitions_603B41A6E6D1550903AC845A03E231B2" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_F1E6BC62D2574536FC6B845A03E18CA7" xlink:to="loc_us-gaap_StockIssuedDuringPeriodSharesAcquisitions_603B41A6E6D1550903AC845A03E231B2" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StockIssuedDuringPeriodValueAcquisitions" xlink:label="loc_us-gaap_StockIssuedDuringPeriodValueAcquisitions_714542EC577060DBDB9E845A03E35CE4" xlink:type="locator" />
    <link:presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_F1E6BC62D2574536FC6B845A03E18CA7" xlink:to="loc_us-gaap_StockIssuedDuringPeriodValueAcquisitions_714542EC577060DBDB9E845A03E35CE4" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption" xlink:label="loc_us-gaap_CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption_E0EC50A8271D161F5471845A03E38C40" xlink:type="locator" />
    <link:presentationArc order="8" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_F1E6BC62D2574536FC6B845A03E18CA7" xlink:to="loc_us-gaap_CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption_E0EC50A8271D161F5471845A03E38C40" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic" xlink:label="loc_us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic_E93E9F51F81600A9F13F845A03E33720" xlink:type="locator" />
    <link:presentationArc order="9" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" priority="9" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_F1E6BC62D2574536FC6B845A03E18CA7" xlink:to="loc_us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic_E93E9F51F81600A9F13F845A03E33720" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPortionAttributableToParent" xlink:label="loc_us-gaap_OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPortionAttributableToParent_4236D24ABC725B60EB2A845A03E39653" xlink:type="locator" />
    <link:presentationArc order="10" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel" priority="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_F1E6BC62D2574536FC6B845A03E18CA7" xlink:to="loc_us-gaap_OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPortionAttributableToParent_4236D24ABC725B60EB2A845A03E39653" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent" xlink:label="loc_us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent_4345805133EB7CD7EECC845A03E4798D" xlink:type="locator" />
    <link:presentationArc order="11" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_F1E6BC62D2574536FC6B845A03E18CA7" xlink:to="loc_us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent_4345805133EB7CD7EECC845A03E4798D" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180930.xsd#lqdt_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParentIncludingImpactToRetainedEarnings" xlink:label="loc_lqdt_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParentIncludingImpactToRetainedEarnings_FF52356096AA40FF1FB1845A03E4030C" xlink:type="locator" />
    <link:presentationArc order="12" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_F1E6BC62D2574536FC6B845A03E18CA7" xlink:to="loc_lqdt_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParentIncludingImpactToRetainedEarnings_FF52356096AA40FF1FB1845A03E4030C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SharesIssued" xlink:label="loc_us-gaap_SharesIssued_B2A64FA2F8806FDEAD94845A03E41036" xlink:type="locator" />
    <link:presentationArc order="13" preferredLabel="http://www.xbrl.org/2003/role/periodEndLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_F1E6BC62D2574536FC6B845A03E18CA7" xlink:to="loc_us-gaap_SharesIssued_B2A64FA2F8806FDEAD94845A03E41036" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StockholdersEquity" xlink:label="loc_us-gaap_StockholdersEquity_BAEA7A08C927901280BD845A03E46359" xlink:type="locator" />
    <link:presentationArc order="14" preferredLabel="http://www.xbrl.org/2003/role/periodEndLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_F1E6BC62D2574536FC6B845A03E18CA7" xlink:to="loc_us-gaap_StockholdersEquity_BAEA7A08C927901280BD845A03E46359" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://liquidityservices.com/role/DefinedBenefitPensionPlan" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DefinedBenefitPensionPlansAndDefinedBenefitPostretirementPlansDisclosureAbstract" xlink:label="loc_us-gaap_DefinedBenefitPensionPlansAndDefinedBenefitPostretirementPlansDisclosureAbstract_3C661DCFF55A6FF5FC0986E5D888D6CB" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PensionAndOtherPostretirementBenefitsDisclosureTextBlock" xlink:label="loc_us-gaap_PensionAndOtherPostretirementBenefitsDisclosureTextBlock_74808856714514D5E82586E5D8886C0C" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPensionPlansAndDefinedBenefitPostretirementPlansDisclosureAbstract_3C661DCFF55A6FF5FC0986E5D888D6CB" xlink:to="loc_us-gaap_PensionAndOtherPostretirementBenefitsDisclosureTextBlock_74808856714514D5E82586E5D8886C0C" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://liquidityservices.com/role/DefinedBenefitPensionPlanFairValueEstimatesDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DefinedBenefitPensionPlansAndDefinedBenefitPostretirementPlansDisclosureAbstract" xlink:label="loc_us-gaap_DefinedBenefitPensionPlansAndDefinedBenefitPostretirementPlansDisclosureAbstract_E1D3298CA33A0DDEEC9E845A00ECBE62" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfDefinedBenefitPlansDisclosuresTable" xlink:label="loc_us-gaap_ScheduleOfDefinedBenefitPlansDisclosuresTable_48B53D03402217C377FB845A00EC8001" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPensionPlansAndDefinedBenefitPostretirementPlansDisclosureAbstract_E1D3298CA33A0DDEEC9E845A00ECBE62" xlink:to="loc_us-gaap_ScheduleOfDefinedBenefitPlansDisclosuresTable_48B53D03402217C377FB845A00EC8001" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis" xlink:label="loc_us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis_802E660F3AFEA1BCB6A5845A00ED05A3" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfDefinedBenefitPlansDisclosuresTable_48B53D03402217C377FB845A00EC8001" xlink:to="loc_us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis_802E660F3AFEA1BCB6A5845A00ED05A3" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PlanAssetCategoriesDomain" xlink:label="loc_us-gaap_PlanAssetCategoriesDomain_175370E945A6E76835DE845A00ED847E" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis_802E660F3AFEA1BCB6A5845A00ED05A3" xlink:to="loc_us-gaap_PlanAssetCategoriesDomain_175370E945A6E76835DE845A00ED847E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EquitySecuritiesMember" xlink:label="loc_us-gaap_EquitySecuritiesMember_11AD1481680F79FA4FEF845A00EED757" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PlanAssetCategoriesDomain_175370E945A6E76835DE845A00ED847E" xlink:to="loc_us-gaap_EquitySecuritiesMember_11AD1481680F79FA4FEF845A00EED757" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FixedIncomeFundsMember" xlink:label="loc_us-gaap_FixedIncomeFundsMember_5647A34CED77F26942FF845A00EE4EDA" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PlanAssetCategoriesDomain_175370E945A6E76835DE845A00ED847E" xlink:to="loc_us-gaap_FixedIncomeFundsMember_5647A34CED77F26942FF845A00EE4EDA" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CashEquivalentsMember" xlink:label="loc_us-gaap_CashEquivalentsMember_50BDFFFFD986A8500A43845A00EECB24" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PlanAssetCategoriesDomain_175370E945A6E76835DE845A00ED847E" xlink:to="loc_us-gaap_CashEquivalentsMember_50BDFFFFD986A8500A43845A00EECB24" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FairValueByFairValueHierarchyLevelAxis" xlink:label="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_CF78341CFE81319CBD23845A00EE29AA" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfDefinedBenefitPlansDisclosuresTable_48B53D03402217C377FB845A00EC8001" xlink:to="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_CF78341CFE81319CBD23845A00EE29AA" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FairValueMeasurementsFairValueHierarchyDomain" xlink:label="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_A5674AEBB9D66F8A27AC845A00EF2D9C" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_CF78341CFE81319CBD23845A00EE29AA" xlink:to="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_A5674AEBB9D66F8A27AC845A00EF2D9C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FairValueInputsLevel1Member" xlink:label="loc_us-gaap_FairValueInputsLevel1Member_46DD8FD3DCA7DFDC4AA7845A00EFB0F7" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_A5674AEBB9D66F8A27AC845A00EF2D9C" xlink:to="loc_us-gaap_FairValueInputsLevel1Member_46DD8FD3DCA7DFDC4AA7845A00EFB0F7" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FairValueInputsLevel2Member" xlink:label="loc_us-gaap_FairValueInputsLevel2Member_DBB5316F9A8896B5A373845A00EF3586" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_A5674AEBB9D66F8A27AC845A00EF2D9C" xlink:to="loc_us-gaap_FairValueInputsLevel2Member_DBB5316F9A8896B5A373845A00EF3586" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FairValueInputsLevel3Member" xlink:label="loc_us-gaap_FairValueInputsLevel3Member_B1F1B618475383675C39846432944E2C" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_A5674AEBB9D66F8A27AC845A00EF2D9C" xlink:to="loc_us-gaap_FairValueInputsLevel3Member_B1F1B618475383675C39846432944E2C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FairValueByMeasurementBasisAxis" xlink:label="loc_us-gaap_FairValueByMeasurementBasisAxis_93FED174AC182937E459845A00EF141D" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfDefinedBenefitPlansDisclosuresTable_48B53D03402217C377FB845A00EC8001" xlink:to="loc_us-gaap_FairValueByMeasurementBasisAxis_93FED174AC182937E459845A00EF141D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FairValueDisclosureItemAmountsDomain" xlink:label="loc_us-gaap_FairValueDisclosureItemAmountsDomain_57713B339567C9E4B489845A00F0C710" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueByMeasurementBasisAxis_93FED174AC182937E459845A00EF141D" xlink:to="loc_us-gaap_FairValueDisclosureItemAmountsDomain_57713B339567C9E4B489845A00F0C710" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PortionAtFairValueFairValueDisclosureMember" xlink:label="loc_us-gaap_PortionAtFairValueFairValueDisclosureMember_5C57DFAA40F840395FE5845A00F0BD50" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueDisclosureItemAmountsDomain_57713B339567C9E4B489845A00F0C710" xlink:to="loc_us-gaap_PortionAtFairValueFairValueDisclosureMember_5C57DFAA40F840395FE5845A00F0BD50" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EstimateOfFairValueFairValueDisclosureMember" xlink:label="loc_us-gaap_EstimateOfFairValueFairValueDisclosureMember_E9A4AA9E9953CD3B3C59845A00F0F051" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueDisclosureItemAmountsDomain_57713B339567C9E4B489845A00F0C710" xlink:to="loc_us-gaap_EstimateOfFairValueFairValueDisclosureMember_E9A4AA9E9953CD3B3C59845A00F0F051" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DefinedBenefitPlanDisclosureLineItems" xlink:label="loc_us-gaap_DefinedBenefitPlanDisclosureLineItems_71CE2A0353591EBD84F7845A00F0C0B8" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfDefinedBenefitPlansDisclosuresTable_48B53D03402217C377FB845A00EC8001" xlink:to="loc_us-gaap_DefinedBenefitPlanDisclosureLineItems_71CE2A0353591EBD84F7845A00F0C0B8" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DefinedBenefitPlanFairValueOfPlanAssets" xlink:label="loc_us-gaap_DefinedBenefitPlanFairValueOfPlanAssets_37D2E8EF74A85371FD5E845A00F1905D" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPlanDisclosureLineItems_71CE2A0353591EBD84F7845A00F0C0B8" xlink:to="loc_us-gaap_DefinedBenefitPlanFairValueOfPlanAssets_37D2E8EF74A85371FD5E845A00F1905D" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://liquidityservices.com/role/DefinedBenefitPensionPlanNarrativeDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DefinedBenefitPensionPlansAndDefinedBenefitPostretirementPlansDisclosureAbstract" xlink:label="loc_us-gaap_DefinedBenefitPensionPlansAndDefinedBenefitPostretirementPlansDisclosureAbstract_FF2937C2780BA13AA05D845A0104D5CF" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfDefinedBenefitPlansDisclosuresTable" xlink:label="loc_us-gaap_ScheduleOfDefinedBenefitPlansDisclosuresTable_52AC567E183387CF6F91845A01042BC9" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPensionPlansAndDefinedBenefitPostretirementPlansDisclosureAbstract_FF2937C2780BA13AA05D845A0104D5CF" xlink:to="loc_us-gaap_ScheduleOfDefinedBenefitPlansDisclosuresTable_52AC567E183387CF6F91845A01042BC9" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RetirementPlanTypeAxis" xlink:label="loc_us-gaap_RetirementPlanTypeAxis_21E4B9DB12039D768181845A0105E7BD" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfDefinedBenefitPlansDisclosuresTable_52AC567E183387CF6F91845A01042BC9" xlink:to="loc_us-gaap_RetirementPlanTypeAxis_21E4B9DB12039D768181845A0105E7BD" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RetirementPlanTypeDomain" xlink:label="loc_us-gaap_RetirementPlanTypeDomain_73DF1CF8B3FE5623CCEC845A0105E4A5" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RetirementPlanTypeAxis_21E4B9DB12039D768181845A0105E7BD" xlink:to="loc_us-gaap_RetirementPlanTypeDomain_73DF1CF8B3FE5623CCEC845A0105E4A5" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PensionPlansDefinedBenefitMember" xlink:label="loc_us-gaap_PensionPlansDefinedBenefitMember_26B102BF4B8BA6605C2F845A01052D0C" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RetirementPlanTypeDomain_73DF1CF8B3FE5623CCEC845A0105E4A5" xlink:to="loc_us-gaap_PensionPlansDefinedBenefitMember_26B102BF4B8BA6605C2F845A01052D0C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis" xlink:label="loc_us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis_50767E41FD20E7B9914D845A01065055" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfDefinedBenefitPlansDisclosuresTable_52AC567E183387CF6F91845A01042BC9" xlink:to="loc_us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis_50767E41FD20E7B9914D845A01065055" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PlanAssetCategoriesDomain" xlink:label="loc_us-gaap_PlanAssetCategoriesDomain_722C5217E8ADA307D7CD845A0106F26F" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis_50767E41FD20E7B9914D845A01065055" xlink:to="loc_us-gaap_PlanAssetCategoriesDomain_722C5217E8ADA307D7CD845A0106F26F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EquitySecuritiesMember" xlink:label="loc_us-gaap_EquitySecuritiesMember_5C1D66BC3DCD68994C63845A0106694A" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PlanAssetCategoriesDomain_722C5217E8ADA307D7CD845A0106F26F" xlink:to="loc_us-gaap_EquitySecuritiesMember_5C1D66BC3DCD68994C63845A0106694A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FixedIncomeFundsMember" xlink:label="loc_us-gaap_FixedIncomeFundsMember_B5F2AB836817BBC0FED4845A01068897" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PlanAssetCategoriesDomain_722C5217E8ADA307D7CD845A0106F26F" xlink:to="loc_us-gaap_FixedIncomeFundsMember_B5F2AB836817BBC0FED4845A01068897" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CashEquivalentsMember" xlink:label="loc_us-gaap_CashEquivalentsMember_5C980A350838CC0F1EC7845A01077075" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PlanAssetCategoriesDomain_722C5217E8ADA307D7CD845A0106F26F" xlink:to="loc_us-gaap_CashEquivalentsMember_5C980A350838CC0F1EC7845A01077075" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ConcentrationRiskByTypeAxis" xlink:label="loc_us-gaap_ConcentrationRiskByTypeAxis_D33ED2F9E99226D31604845A01078261" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfDefinedBenefitPlansDisclosuresTable_52AC567E183387CF6F91845A01042BC9" xlink:to="loc_us-gaap_ConcentrationRiskByTypeAxis_D33ED2F9E99226D31604845A01078261" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ConcentrationRiskTypeDomain" xlink:label="loc_us-gaap_ConcentrationRiskTypeDomain_A7BC14EBDDFD7B12B9E6845A0107F51C" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ConcentrationRiskByTypeAxis_D33ED2F9E99226D31604845A01078261" xlink:to="loc_us-gaap_ConcentrationRiskTypeDomain_A7BC14EBDDFD7B12B9E6845A0107F51C" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180930.xsd#lqdt_MalesMember" xlink:label="loc_lqdt_MalesMember_0A11E3D8BAD0BFDD9C5A845A01074644" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ConcentrationRiskTypeDomain_A7BC14EBDDFD7B12B9E6845A0107F51C" xlink:to="loc_lqdt_MalesMember_0A11E3D8BAD0BFDD9C5A845A01074644" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180930.xsd#lqdt_FemalesMember" xlink:label="loc_lqdt_FemalesMember_938A0C9E8D93C60A3B46845A0108B849" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ConcentrationRiskTypeDomain_A7BC14EBDDFD7B12B9E6845A0107F51C" xlink:to="loc_lqdt_FemalesMember_938A0C9E8D93C60A3B46845A0108B849" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DefinedBenefitPlanDisclosureLineItems" xlink:label="loc_us-gaap_DefinedBenefitPlanDisclosureLineItems_60AC4F32CD5F92D84120845A0108EBEC" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfDefinedBenefitPlansDisclosuresTable_52AC567E183387CF6F91845A01042BC9" xlink:to="loc_us-gaap_DefinedBenefitPlanDisclosureLineItems_60AC4F32CD5F92D84120845A0108EBEC" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DefinedBenefitPlanNetPeriodicBenefitCostAbstract" xlink:label="loc_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCostAbstract_C1C221BAEFCE04456773845A01089210" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPlanDisclosureLineItems_60AC4F32CD5F92D84120845A0108EBEC" xlink:to="loc_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCostAbstract_C1C221BAEFCE04456773845A01089210" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DefinedBenefitPlanInterestCost" xlink:label="loc_us-gaap_DefinedBenefitPlanInterestCost_E2274234CBAB949F3E4E845A01094D94" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCostAbstract_C1C221BAEFCE04456773845A01089210" xlink:to="loc_us-gaap_DefinedBenefitPlanInterestCost_E2274234CBAB949F3E4E845A01094D94" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DefinedBenefitPlanExpectedReturnOnPlanAssets" xlink:label="loc_us-gaap_DefinedBenefitPlanExpectedReturnOnPlanAssets_AA360BA35A265545BBC6845A01098DD0" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCostAbstract_C1C221BAEFCE04456773845A01089210" xlink:to="loc_us-gaap_DefinedBenefitPlanExpectedReturnOnPlanAssets_AA360BA35A265545BBC6845A01098DD0" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost" xlink:label="loc_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost_3493CA6C84BD30919740845A0109676F" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" priority="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCostAbstract_C1C221BAEFCE04456773845A01089210" xlink:to="loc_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost_3493CA6C84BD30919740845A0109676F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DefinedBenefitPlanFundedStatusOfPlanAbstract" xlink:label="loc_us-gaap_DefinedBenefitPlanFundedStatusOfPlanAbstract_7596AD927E5657AB0566845A0109C894" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPlanDisclosureLineItems_60AC4F32CD5F92D84120845A0108EBEC" xlink:to="loc_us-gaap_DefinedBenefitPlanFundedStatusOfPlanAbstract_7596AD927E5657AB0566845A0109C894" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DefinedBenefitPlanChangeInBenefitObligationRollForward" xlink:label="loc_us-gaap_DefinedBenefitPlanChangeInBenefitObligationRollForward_1D2963AB22AE0A7FB5C3845A010A5878" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPlanFundedStatusOfPlanAbstract_7596AD927E5657AB0566845A0109C894" xlink:to="loc_us-gaap_DefinedBenefitPlanChangeInBenefitObligationRollForward_1D2963AB22AE0A7FB5C3845A010A5878" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DefinedBenefitPlanBenefitObligation" xlink:label="loc_us-gaap_DefinedBenefitPlanBenefitObligation_1AA1CAA18774938E31E8845A010A17ED" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/periodStartLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPlanChangeInBenefitObligationRollForward_1D2963AB22AE0A7FB5C3845A010A5878" xlink:to="loc_us-gaap_DefinedBenefitPlanBenefitObligation_1AA1CAA18774938E31E8845A010A17ED" xlink:type="arc" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPlanChangeInBenefitObligationRollForward_1D2963AB22AE0A7FB5C3845A010A5878" xlink:to="loc_us-gaap_DefinedBenefitPlanInterestCost_E2274234CBAB949F3E4E845A01094D94" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DefinedBenefitPlanBenefitObligationBenefitsPaid" xlink:label="loc_us-gaap_DefinedBenefitPlanBenefitObligationBenefitsPaid_4AFC074E3D9459EA6CB9845A010BC040" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPlanChangeInBenefitObligationRollForward_1D2963AB22AE0A7FB5C3845A010A5878" xlink:to="loc_us-gaap_DefinedBenefitPlanBenefitObligationBenefitsPaid_4AFC074E3D9459EA6CB9845A010BC040" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DefinedBenefitPlanActuarialGainLoss" xlink:label="loc_us-gaap_DefinedBenefitPlanActuarialGainLoss_43F73EB6D75A4AB09991845A010B2156" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPlanChangeInBenefitObligationRollForward_1D2963AB22AE0A7FB5C3845A010A5878" xlink:to="loc_us-gaap_DefinedBenefitPlanActuarialGainLoss_43F73EB6D75A4AB09991845A010B2156" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DefinedBenefitPlanForeignCurrencyExchangeRateChangesBenefitObligation" xlink:label="loc_us-gaap_DefinedBenefitPlanForeignCurrencyExchangeRateChangesBenefitObligation_C745C2EBC32AD6A97BD2845A010BD13A" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPlanChangeInBenefitObligationRollForward_1D2963AB22AE0A7FB5C3845A010A5878" xlink:to="loc_us-gaap_DefinedBenefitPlanForeignCurrencyExchangeRateChangesBenefitObligation_C745C2EBC32AD6A97BD2845A010BD13A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DefinedBenefitPlanBenefitObligation" xlink:label="loc_us-gaap_DefinedBenefitPlanBenefitObligation_5EED5DD60B3F6F18177D845A010BAD07" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/periodEndLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPlanChangeInBenefitObligationRollForward_1D2963AB22AE0A7FB5C3845A010A5878" xlink:to="loc_us-gaap_DefinedBenefitPlanBenefitObligation_5EED5DD60B3F6F18177D845A010BAD07" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DefinedBenefitPlanChangeInFairValueOfPlanAssetsRollForward" xlink:label="loc_us-gaap_DefinedBenefitPlanChangeInFairValueOfPlanAssetsRollForward_E13E0AF25A06C729D87F845A010C20B7" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPlanFundedStatusOfPlanAbstract_7596AD927E5657AB0566845A0109C894" xlink:to="loc_us-gaap_DefinedBenefitPlanChangeInFairValueOfPlanAssetsRollForward_E13E0AF25A06C729D87F845A010C20B7" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DefinedBenefitPlanFairValueOfPlanAssets" xlink:label="loc_us-gaap_DefinedBenefitPlanFairValueOfPlanAssets_AB9B1A06BAB49AF7C3AB845A010C4218" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/periodStartLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPlanChangeInFairValueOfPlanAssetsRollForward_E13E0AF25A06C729D87F845A010C20B7" xlink:to="loc_us-gaap_DefinedBenefitPlanFairValueOfPlanAssets_AB9B1A06BAB49AF7C3AB845A010C4218" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DefinedBenefitPlanActualReturnOnPlanAssets" xlink:label="loc_us-gaap_DefinedBenefitPlanActualReturnOnPlanAssets_283DB39E567D61D542C0845A010C024C" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPlanChangeInFairValueOfPlanAssetsRollForward_E13E0AF25A06C729D87F845A010C20B7" xlink:to="loc_us-gaap_DefinedBenefitPlanActualReturnOnPlanAssets_283DB39E567D61D542C0845A010C024C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DefinedBenefitPlanPlanAssetsBenefitsPaid" xlink:label="loc_us-gaap_DefinedBenefitPlanPlanAssetsBenefitsPaid_655221F7EEE19327C762845A010C5040" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPlanChangeInFairValueOfPlanAssetsRollForward_E13E0AF25A06C729D87F845A010C20B7" xlink:to="loc_us-gaap_DefinedBenefitPlanPlanAssetsBenefitsPaid_655221F7EEE19327C762845A010C5040" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DefinedBenefitPlanContributionsByEmployer" xlink:label="loc_us-gaap_DefinedBenefitPlanContributionsByEmployer_755C2E401BB9A986689E845A010D44E2" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPlanChangeInFairValueOfPlanAssetsRollForward_E13E0AF25A06C729D87F845A010C20B7" xlink:to="loc_us-gaap_DefinedBenefitPlanContributionsByEmployer_755C2E401BB9A986689E845A010D44E2" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DefinedBenefitPlanPlanAssetsForeignCurrencyTranslationGainLoss" xlink:label="loc_us-gaap_DefinedBenefitPlanPlanAssetsForeignCurrencyTranslationGainLoss_C1CC80A5D2D557337955845A010DACD3" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPlanChangeInFairValueOfPlanAssetsRollForward_E13E0AF25A06C729D87F845A010C20B7" xlink:to="loc_us-gaap_DefinedBenefitPlanPlanAssetsForeignCurrencyTranslationGainLoss_C1CC80A5D2D557337955845A010DACD3" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DefinedBenefitPlanFairValueOfPlanAssets" xlink:label="loc_us-gaap_DefinedBenefitPlanFairValueOfPlanAssets_E5EB0AF1141C28910B6F845A010D8D4D" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/periodEndLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPlanChangeInFairValueOfPlanAssetsRollForward_E13E0AF25A06C729D87F845A010C20B7" xlink:to="loc_us-gaap_DefinedBenefitPlanFairValueOfPlanAssets_E5EB0AF1141C28910B6F845A010D8D4D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DefinedBenefitPlanFundedStatusOfPlan" xlink:label="loc_us-gaap_DefinedBenefitPlanFundedStatusOfPlan_3AD010372CB324A1319C845A010D8741" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPlanFundedStatusOfPlanAbstract_7596AD927E5657AB0566845A0109C894" xlink:to="loc_us-gaap_DefinedBenefitPlanFundedStatusOfPlan_3AD010372CB324A1319C845A010D8741" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DefinedBenefitPlanAmountsRecognizedInOtherComprehensiveIncomeAbstract" xlink:label="loc_us-gaap_DefinedBenefitPlanAmountsRecognizedInOtherComprehensiveIncomeAbstract_DD8CC2918A7CB9BC9B30845A010D71EE" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPlanDisclosureLineItems_60AC4F32CD5F92D84120845A0108EBEC" xlink:to="loc_us-gaap_DefinedBenefitPlanAmountsRecognizedInOtherComprehensiveIncomeAbstract_DD8CC2918A7CB9BC9B30845A010D71EE" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeLossAfterTaxAbstract" xlink:label="loc_us-gaap_DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeLossAfterTaxAbstract_6DE332F3EA2DF48AAD44845A010ED2FC" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPlanAmountsRecognizedInOtherComprehensiveIncomeAbstract_DD8CC2918A7CB9BC9B30845A010D71EE" xlink:to="loc_us-gaap_DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeLossAfterTaxAbstract_6DE332F3EA2DF48AAD44845A010ED2FC" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax_E81883EB4EE38ABE8967845A010EA471" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/periodStartLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeLossAfterTaxAbstract_6DE332F3EA2DF48AAD44845A010ED2FC" xlink:to="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax_E81883EB4EE38ABE8967845A010EA471" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax" xlink:label="loc_us-gaap_OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax_C9BFF9B45BEB4EF46E4D845A010E6C47" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeLossAfterTaxAbstract_6DE332F3EA2DF48AAD44845A010ED2FC" xlink:to="loc_us-gaap_OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax_C9BFF9B45BEB4EF46E4D845A010E6C47" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax_5E66ABC33D908E1AD2A2845A010FE52E" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeLossAfterTaxAbstract_6DE332F3EA2DF48AAD44845A010ED2FC" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax_5E66ABC33D908E1AD2A2845A010FE52E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax_D7C6C22268CC855028D5845A010FF41C" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/periodEndLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeLossAfterTaxAbstract_6DE332F3EA2DF48AAD44845A010ED2FC" xlink:to="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax_D7C6C22268CC855028D5845A010FF41C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DefinedBenefitPlanAmountsThatWillBeAmortizedFromAccumulatedOtherComprehensiveIncomeLossInNextFiscalYearAbstract" xlink:label="loc_us-gaap_DefinedBenefitPlanAmountsThatWillBeAmortizedFromAccumulatedOtherComprehensiveIncomeLossInNextFiscalYearAbstract_0501E081B0DDC0DCFB4A845A010FADB7" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPlanDisclosureLineItems_60AC4F32CD5F92D84120845A0108EBEC" xlink:to="loc_us-gaap_DefinedBenefitPlanAmountsThatWillBeAmortizedFromAccumulatedOtherComprehensiveIncomeLossInNextFiscalYearAbstract_0501E081B0DDC0DCFB4A845A010FADB7" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DefinedBenefitPlanExpectedAmortizationNextFiscalYear" xlink:label="loc_us-gaap_DefinedBenefitPlanExpectedAmortizationNextFiscalYear_0F9DB960A95BF26143E5845A01678D8F" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPlanAmountsThatWillBeAmortizedFromAccumulatedOtherComprehensiveIncomeLossInNextFiscalYearAbstract_0501E081B0DDC0DCFB4A845A010FADB7" xlink:to="loc_us-gaap_DefinedBenefitPlanExpectedAmortizationNextFiscalYear_0F9DB960A95BF26143E5845A01678D8F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DefinedBenefitPlanAssumptionsUsedInCalculationsAbstract" xlink:label="loc_us-gaap_DefinedBenefitPlanAssumptionsUsedInCalculationsAbstract_12AC2ED0F30029D50744845A01674BC9" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPlanDisclosureLineItems_60AC4F32CD5F92D84120845A0108EBEC" xlink:to="loc_us-gaap_DefinedBenefitPlanAssumptionsUsedInCalculationsAbstract_12AC2ED0F30029D50744845A01674BC9" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostDiscountRate" xlink:label="loc_us-gaap_DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostDiscountRate_9AF7FFA59085BF981952845A01670DF5" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPlanAssumptionsUsedInCalculationsAbstract_12AC2ED0F30029D50744845A01674BC9" xlink:to="loc_us-gaap_DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostDiscountRate_9AF7FFA59085BF981952845A01670DF5" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostExpectedLongTermReturnOnAssets" xlink:label="loc_us-gaap_DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostExpectedLongTermReturnOnAssets_A6ED91C3A5820680D401845A01679E4C" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPlanAssumptionsUsedInCalculationsAbstract_12AC2ED0F30029D50744845A01674BC9" xlink:to="loc_us-gaap_DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostExpectedLongTermReturnOnAssets_A6ED91C3A5820680D401845A01679E4C" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180930.xsd#lqdt_DefinedBenefitPlanAssumptionsUsedToCalculateBenefitObligationAndNetPeriodicBenefitCostRateOfIncreasesToNonGMPPensionsInPaymentAccruedPre04June1997" xlink:label="loc_lqdt_DefinedBenefitPlanAssumptionsUsedToCalculateBenefitObligationAndNetPeriodicBenefitCostRateOfIncreasesToNonGMPPensionsInPaymentAccruedPre04June1997_D4402144994F450027F8845A0168E9E6" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPlanAssumptionsUsedInCalculationsAbstract_12AC2ED0F30029D50744845A01674BC9" xlink:to="loc_lqdt_DefinedBenefitPlanAssumptionsUsedToCalculateBenefitObligationAndNetPeriodicBenefitCostRateOfIncreasesToNonGMPPensionsInPaymentAccruedPre04June1997_D4402144994F450027F8845A0168E9E6" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180930.xsd#lqdt_DefinedBenefitPlanAssumptionsUsedToCalculateBenefitObligationAndNetPeriodicBenefitCostRateOfIncreasesToNonGMPPensionsInPaymentAccruedPost04June1997" xlink:label="loc_lqdt_DefinedBenefitPlanAssumptionsUsedToCalculateBenefitObligationAndNetPeriodicBenefitCostRateOfIncreasesToNonGMPPensionsInPaymentAccruedPost04June1997_0B4773F22AD3812A218C845A0168BA8F" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPlanAssumptionsUsedInCalculationsAbstract_12AC2ED0F30029D50744845A01674BC9" xlink:to="loc_lqdt_DefinedBenefitPlanAssumptionsUsedToCalculateBenefitObligationAndNetPeriodicBenefitCostRateOfIncreasesToNonGMPPensionsInPaymentAccruedPost04June1997_0B4773F22AD3812A218C845A0168BA8F" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180930.xsd#lqdt_DefinedBenefitPlanAssumptionsUsedToCalculateBenefitObligationAndNetPeriodicBenefitCostRateOfIncreasesToDeferredConsumerPriceIndexLinkedBenefits" xlink:label="loc_lqdt_DefinedBenefitPlanAssumptionsUsedToCalculateBenefitObligationAndNetPeriodicBenefitCostRateOfIncreasesToDeferredConsumerPriceIndexLinkedBenefits_7AFF6229E564C3C7996D845A0168A690" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPlanAssumptionsUsedInCalculationsAbstract_12AC2ED0F30029D50744845A01674BC9" xlink:to="loc_lqdt_DefinedBenefitPlanAssumptionsUsedToCalculateBenefitObligationAndNetPeriodicBenefitCostRateOfIncreasesToDeferredConsumerPriceIndexLinkedBenefits_7AFF6229E564C3C7996D845A0168A690" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180930.xsd#lqdt_DefinedBenefitPlanAssumptionsUsedToCalculateBenefitObligationAndNetPeriodicBenefitCostRateOfIncreasesToDeferredRetailPricesIndexLinkedBenefits" xlink:label="loc_lqdt_DefinedBenefitPlanAssumptionsUsedToCalculateBenefitObligationAndNetPeriodicBenefitCostRateOfIncreasesToDeferredRetailPricesIndexLinkedBenefits_4DC6D29043B7A08232AB845A01681AEA" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPlanAssumptionsUsedInCalculationsAbstract_12AC2ED0F30029D50744845A01674BC9" xlink:to="loc_lqdt_DefinedBenefitPlanAssumptionsUsedToCalculateBenefitObligationAndNetPeriodicBenefitCostRateOfIncreasesToDeferredRetailPricesIndexLinkedBenefits_4DC6D29043B7A08232AB845A01681AEA" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180930.xsd#lqdt_DefinedBenefitPlanMortalityRate" xlink:label="loc_lqdt_DefinedBenefitPlanMortalityRate_2BC43121B82A089D6BA5845A0168B547" xlink:type="locator" />
    <link:presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPlanAssumptionsUsedInCalculationsAbstract_12AC2ED0F30029D50744845A01674BC9" xlink:to="loc_lqdt_DefinedBenefitPlanMortalityRate_2BC43121B82A089D6BA5845A0168B547" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180930.xsd#lqdt_DefinedBenefitPlanLongTermRateOfImprovement" xlink:label="loc_lqdt_DefinedBenefitPlanLongTermRateOfImprovement_47A63DB918273B4E3F4A845A01691C0A" xlink:type="locator" />
    <link:presentationArc order="8" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPlanAssumptionsUsedInCalculationsAbstract_12AC2ED0F30029D50744845A01674BC9" xlink:to="loc_lqdt_DefinedBenefitPlanLongTermRateOfImprovement_47A63DB918273B4E3F4A845A01691C0A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DefinedBenefitPlanEstimatedFutureBenefitPaymentsAbstract" xlink:label="loc_us-gaap_DefinedBenefitPlanEstimatedFutureBenefitPaymentsAbstract_B8A8F44B8516D41F66E0845A0169329D" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPlanDisclosureLineItems_60AC4F32CD5F92D84120845A0108EBEC" xlink:to="loc_us-gaap_DefinedBenefitPlanEstimatedFutureBenefitPaymentsAbstract_B8A8F44B8516D41F66E0845A0169329D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsNextTwelveMonths" xlink:label="loc_us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsNextTwelveMonths_32F66306BC3D683F6144845A016909A4" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPlanEstimatedFutureBenefitPaymentsAbstract_B8A8F44B8516D41F66E0845A0169329D" xlink:to="loc_us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsNextTwelveMonths_32F66306BC3D683F6144845A016909A4" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsYearTwo" xlink:label="loc_us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsYearTwo_0AAB333BE62D7CCBA6AF845A016A87DD" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPlanEstimatedFutureBenefitPaymentsAbstract_B8A8F44B8516D41F66E0845A0169329D" xlink:to="loc_us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsYearTwo_0AAB333BE62D7CCBA6AF845A016A87DD" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsYearThree" xlink:label="loc_us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsYearThree_AA93999B71F69EB0C942845A016A30E7" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPlanEstimatedFutureBenefitPaymentsAbstract_B8A8F44B8516D41F66E0845A0169329D" xlink:to="loc_us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsYearThree_AA93999B71F69EB0C942845A016A30E7" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFour" xlink:label="loc_us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFour_CEE01CF832DA5AC3A2B2845A016AAAA5" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPlanEstimatedFutureBenefitPaymentsAbstract_B8A8F44B8516D41F66E0845A0169329D" xlink:to="loc_us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFour_CEE01CF832DA5AC3A2B2845A016AAAA5" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFive" xlink:label="loc_us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFive_F5D0EF6850BC3F0C2EBB845A016A42AE" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPlanEstimatedFutureBenefitPaymentsAbstract_B8A8F44B8516D41F66E0845A0169329D" xlink:to="loc_us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFive_F5D0EF6850BC3F0C2EBB845A016A42AE" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsFiveFiscalYearsThereafter" xlink:label="loc_us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsFiveFiscalYearsThereafter_19546293212C58C241DF845A016A4EE1" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPlanEstimatedFutureBenefitPaymentsAbstract_B8A8F44B8516D41F66E0845A0169329D" xlink:to="loc_us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsFiveFiscalYearsThereafter_19546293212C58C241DF845A016A4EE1" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180930.xsd#lqdt_DefinedBenefitPlanExpectedFutureBenefitPayments" xlink:label="loc_lqdt_DefinedBenefitPlanExpectedFutureBenefitPayments_0873D93E41F0C8BBB992845A016ABE3B" xlink:type="locator" />
    <link:presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPlanEstimatedFutureBenefitPaymentsAbstract_B8A8F44B8516D41F66E0845A0169329D" xlink:to="loc_lqdt_DefinedBenefitPlanExpectedFutureBenefitPayments_0873D93E41F0C8BBB992845A016ABE3B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DefinedBenefitPlanInformationAboutPlanAssetsAbstract" xlink:label="loc_us-gaap_DefinedBenefitPlanInformationAboutPlanAssetsAbstract_F4C9E94358B6E08CB711845A016B08D3" xlink:type="locator" />
    <link:presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPlanDisclosureLineItems_60AC4F32CD5F92D84120845A0108EBEC" xlink:to="loc_us-gaap_DefinedBenefitPlanInformationAboutPlanAssetsAbstract_F4C9E94358B6E08CB711845A016B08D3" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DefinedBenefitPlanWeightedAverageAssetAllocations" xlink:label="loc_us-gaap_DefinedBenefitPlanWeightedAverageAssetAllocations_E591864E06E869832D26845A016B75DA" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPlanInformationAboutPlanAssetsAbstract_F4C9E94358B6E08CB711845A016B08D3" xlink:to="loc_us-gaap_DefinedBenefitPlanWeightedAverageAssetAllocations_E591864E06E869832D26845A016B75DA" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180930.xsd#lqdt_DefinedBenefitPlanNumberOfPooledFunds" xlink:label="loc_lqdt_DefinedBenefitPlanNumberOfPooledFunds_C7A7817DEB8D1F7C4996845A016BDFD1" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPlanInformationAboutPlanAssetsAbstract_F4C9E94358B6E08CB711845A016B08D3" xlink:to="loc_lqdt_DefinedBenefitPlanNumberOfPooledFunds_C7A7817DEB8D1F7C4996845A016BDFD1" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180930.xsd#lqdt_DefinedBenefitPlanPooledFundsStrategyPercentageToBeInvestedInUnitedKingdomCompanyShares" xlink:label="loc_lqdt_DefinedBenefitPlanPooledFundsStrategyPercentageToBeInvestedInUnitedKingdomCompanyShares_2A095AB6B43655EAFE52845A016C0170" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPlanInformationAboutPlanAssetsAbstract_F4C9E94358B6E08CB711845A016B08D3" xlink:to="loc_lqdt_DefinedBenefitPlanPooledFundsStrategyPercentageToBeInvestedInUnitedKingdomCompanyShares_2A095AB6B43655EAFE52845A016C0170" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180930.xsd#lqdt_DefinedBenefitPlanPooledFundsStrategyPercentageToBeInvestedInInternationalSecurities" xlink:label="loc_lqdt_DefinedBenefitPlanPooledFundsStrategyPercentageToBeInvestedInInternationalSecurities_7D5FEE48B0B46F7520FD845A016C7554" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPlanInformationAboutPlanAssetsAbstract_F4C9E94358B6E08CB711845A016B08D3" xlink:to="loc_lqdt_DefinedBenefitPlanPooledFundsStrategyPercentageToBeInvestedInInternationalSecurities_7D5FEE48B0B46F7520FD845A016C7554" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://liquidityservices.com/role/DefinedBenefitPensionPlanTables" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DefinedBenefitPensionPlansAndDefinedBenefitPostretirementPlansDisclosureAbstract" xlink:label="loc_us-gaap_DefinedBenefitPensionPlansAndDefinedBenefitPostretirementPlansDisclosureAbstract_E19DC0D1EBD122D8BE8786E5D7C32704" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfNetBenefitCostsTableTextBlock" xlink:label="loc_us-gaap_ScheduleOfNetBenefitCostsTableTextBlock_AC1E0D68A8033E1C33DC86E5D7C34FCB" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPensionPlansAndDefinedBenefitPostretirementPlansDisclosureAbstract_E19DC0D1EBD122D8BE8786E5D7C32704" xlink:to="loc_us-gaap_ScheduleOfNetBenefitCostsTableTextBlock_AC1E0D68A8033E1C33DC86E5D7C34FCB" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfNetFundedStatusTableTextBlock" xlink:label="loc_us-gaap_ScheduleOfNetFundedStatusTableTextBlock_C8F1F7646D21E56994EB86E5D7C4C3E4" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPensionPlansAndDefinedBenefitPostretirementPlansDisclosureAbstract_E19DC0D1EBD122D8BE8786E5D7C32704" xlink:to="loc_us-gaap_ScheduleOfNetFundedStatusTableTextBlock_C8F1F7646D21E56994EB86E5D7C4C3E4" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfAmountsRecognizedInOtherComprehensiveIncomeLossTableTextBlock" xlink:label="loc_us-gaap_ScheduleOfAmountsRecognizedInOtherComprehensiveIncomeLossTableTextBlock_FBAFDFFF71E45868BD7E86E5D7C463B6" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPensionPlansAndDefinedBenefitPostretirementPlansDisclosureAbstract_E19DC0D1EBD122D8BE8786E5D7C32704" xlink:to="loc_us-gaap_ScheduleOfAmountsRecognizedInOtherComprehensiveIncomeLossTableTextBlock_FBAFDFFF71E45868BD7E86E5D7C463B6" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfAssumptionsUsedTableTextBlock" xlink:label="loc_us-gaap_ScheduleOfAssumptionsUsedTableTextBlock_DBB96F44287DFA5A3D4086E5D7C40400" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPensionPlansAndDefinedBenefitPostretirementPlansDisclosureAbstract_E19DC0D1EBD122D8BE8786E5D7C32704" xlink:to="loc_us-gaap_ScheduleOfAssumptionsUsedTableTextBlock_DBB96F44287DFA5A3D4086E5D7C40400" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfExpectedBenefitPaymentsTableTextBlock" xlink:label="loc_us-gaap_ScheduleOfExpectedBenefitPaymentsTableTextBlock_8A83721C972D49A52F6686E5D7C4D15B" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPensionPlansAndDefinedBenefitPostretirementPlansDisclosureAbstract_E19DC0D1EBD122D8BE8786E5D7C32704" xlink:to="loc_us-gaap_ScheduleOfExpectedBenefitPaymentsTableTextBlock_8A83721C972D49A52F6686E5D7C4D15B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfAllocationOfPlanAssetsTableTextBlock" xlink:label="loc_us-gaap_ScheduleOfAllocationOfPlanAssetsTableTextBlock_A34C01644E629D39495386E5D7C4EEF3" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPensionPlansAndDefinedBenefitPostretirementPlansDisclosureAbstract_E19DC0D1EBD122D8BE8786E5D7C32704" xlink:to="loc_us-gaap_ScheduleOfAllocationOfPlanAssetsTableTextBlock_A34C01644E629D39495386E5D7C4EEF3" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfDefinedBenefitPlansDisclosuresTextBlock" xlink:label="loc_us-gaap_ScheduleOfDefinedBenefitPlansDisclosuresTextBlock_2E333A759338D7553C2386E5D7C5F516" xlink:type="locator" />
    <link:presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPensionPlansAndDefinedBenefitPostretirementPlansDisclosureAbstract_E19DC0D1EBD122D8BE8786E5D7C32704" xlink:to="loc_us-gaap_ScheduleOfDefinedBenefitPlansDisclosuresTextBlock_2E333A759338D7553C2386E5D7C5F516" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://liquidityservices.com/role/DocumentAndEntityInformation" xlink:type="extended">
    <link:loc xlink:href="lqdt-20180930.xsd#lqdt_DocumentAndEntityInformationAbstract" xlink:label="loc_lqdt_DocumentAndEntityInformationAbstract_98426E644C84D8D9ACC486E5D6D3FEE4" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_EntityRegistrantName" xlink:label="loc_dei_EntityRegistrantName_772F17D8338D3E5A0BE586E5D6D4A9F9" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_lqdt_DocumentAndEntityInformationAbstract_98426E644C84D8D9ACC486E5D6D3FEE4" xlink:to="loc_dei_EntityRegistrantName_772F17D8338D3E5A0BE586E5D6D4A9F9" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_EntityCentralIndexKey" xlink:label="loc_dei_EntityCentralIndexKey_B3FE791C07B82BA34F7886E5D6D446E6" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_lqdt_DocumentAndEntityInformationAbstract_98426E644C84D8D9ACC486E5D6D3FEE4" xlink:to="loc_dei_EntityCentralIndexKey_B3FE791C07B82BA34F7886E5D6D446E6" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_DocumentType" xlink:label="loc_dei_DocumentType_CBD80C8706C3E360BECC86E5D6D40D2D" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_lqdt_DocumentAndEntityInformationAbstract_98426E644C84D8D9ACC486E5D6D3FEE4" xlink:to="loc_dei_DocumentType_CBD80C8706C3E360BECC86E5D6D40D2D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_DocumentPeriodEndDate" xlink:label="loc_dei_DocumentPeriodEndDate_08A40363E44988E627FA86E5D6D4EDA9" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_lqdt_DocumentAndEntityInformationAbstract_98426E644C84D8D9ACC486E5D6D3FEE4" xlink:to="loc_dei_DocumentPeriodEndDate_08A40363E44988E627FA86E5D6D4EDA9" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_AmendmentFlag" xlink:label="loc_dei_AmendmentFlag_02D5783076BE5419E73986E5D6D58267" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_lqdt_DocumentAndEntityInformationAbstract_98426E644C84D8D9ACC486E5D6D3FEE4" xlink:to="loc_dei_AmendmentFlag_02D5783076BE5419E73986E5D6D58267" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_CurrentFiscalYearEndDate" xlink:label="loc_dei_CurrentFiscalYearEndDate_2F56D5E088298CD1296786E5D6D54765" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_lqdt_DocumentAndEntityInformationAbstract_98426E644C84D8D9ACC486E5D6D3FEE4" xlink:to="loc_dei_CurrentFiscalYearEndDate_2F56D5E088298CD1296786E5D6D54765" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_EntityWellKnownSeasonedIssuer" xlink:label="loc_dei_EntityWellKnownSeasonedIssuer_735F21302F3E0D20129186E5D6D508B7" xlink:type="locator" />
    <link:presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_lqdt_DocumentAndEntityInformationAbstract_98426E644C84D8D9ACC486E5D6D3FEE4" xlink:to="loc_dei_EntityWellKnownSeasonedIssuer_735F21302F3E0D20129186E5D6D508B7" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_EntityVoluntaryFilers" xlink:label="loc_dei_EntityVoluntaryFilers_BB2603A4655F3007741986E5D6D52FBA" xlink:type="locator" />
    <link:presentationArc order="8" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_lqdt_DocumentAndEntityInformationAbstract_98426E644C84D8D9ACC486E5D6D3FEE4" xlink:to="loc_dei_EntityVoluntaryFilers_BB2603A4655F3007741986E5D6D52FBA" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_EntityCurrentReportingStatus" xlink:label="loc_dei_EntityCurrentReportingStatus_A55AF37C9F5D089CADA986E5D6D602F4" xlink:type="locator" />
    <link:presentationArc order="9" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_lqdt_DocumentAndEntityInformationAbstract_98426E644C84D8D9ACC486E5D6D3FEE4" xlink:to="loc_dei_EntityCurrentReportingStatus_A55AF37C9F5D089CADA986E5D6D602F4" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_EntityFilerCategory" xlink:label="loc_dei_EntityFilerCategory_D64BDB380CD7CE2B1E4386E5D6D626D7" xlink:type="locator" />
    <link:presentationArc order="10" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_lqdt_DocumentAndEntityInformationAbstract_98426E644C84D8D9ACC486E5D6D3FEE4" xlink:to="loc_dei_EntityFilerCategory_D64BDB380CD7CE2B1E4386E5D6D626D7" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_EntityPublicFloat" xlink:label="loc_dei_EntityPublicFloat_FFAA67FA13A589B2A93786E5D6D6FA58" xlink:type="locator" />
    <link:presentationArc order="11" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_lqdt_DocumentAndEntityInformationAbstract_98426E644C84D8D9ACC486E5D6D3FEE4" xlink:to="loc_dei_EntityPublicFloat_FFAA67FA13A589B2A93786E5D6D6FA58" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_EntityCommonStockSharesOutstanding" xlink:label="loc_dei_EntityCommonStockSharesOutstanding_8A335DADE44D08D3E2C886E5D6D6B036" xlink:type="locator" />
    <link:presentationArc order="12" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_lqdt_DocumentAndEntityInformationAbstract_98426E644C84D8D9ACC486E5D6D3FEE4" xlink:to="loc_dei_EntityCommonStockSharesOutstanding_8A335DADE44D08D3E2C886E5D6D6B036" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_DocumentFiscalYearFocus" xlink:label="loc_dei_DocumentFiscalYearFocus_019A6662A732066EE03D86E5D6D7FA9B" xlink:type="locator" />
    <link:presentationArc order="13" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_lqdt_DocumentAndEntityInformationAbstract_98426E644C84D8D9ACC486E5D6D3FEE4" xlink:to="loc_dei_DocumentFiscalYearFocus_019A6662A732066EE03D86E5D6D7FA9B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_DocumentFiscalPeriodFocus" xlink:label="loc_dei_DocumentFiscalPeriodFocus_C0C254FFA53B41965AEB86E5D6D7D4B4" xlink:type="locator" />
    <link:presentationArc order="14" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_lqdt_DocumentAndEntityInformationAbstract_98426E644C84D8D9ACC486E5D6D3FEE4" xlink:to="loc_dei_DocumentFiscalPeriodFocus_C0C254FFA53B41965AEB86E5D6D7D4B4" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://liquidityservices.com/role/EquityTransactions" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StockholdersEquityNoteAbstract" xlink:label="loc_us-gaap_StockholdersEquityNoteAbstract_36A53FF60A15B17E94C186E5D7F1F4E5" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareholdersEquityAndShareBasedPaymentsTextBlock" xlink:label="loc_us-gaap_ShareholdersEquityAndShareBasedPaymentsTextBlock_C6924E29F41989F1388486E5D7F1A97D" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StockholdersEquityNoteAbstract_36A53FF60A15B17E94C186E5D7F1F4E5" xlink:to="loc_us-gaap_ShareholdersEquityAndShareBasedPaymentsTextBlock_C6924E29F41989F1388486E5D7F1A97D" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://liquidityservices.com/role/EquityTransactions2006PlanDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StockholdersEquityNoteAbstract" xlink:label="loc_us-gaap_StockholdersEquityNoteAbstract_2F6D6010B200B411A7675AEC3DA914B4" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable" xlink:label="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_61D65E8336B352A5FBAA5AEC3DAAA81B" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StockholdersEquityNoteAbstract_2F6D6010B200B411A7675AEC3DA914B4" xlink:to="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_61D65E8336B352A5FBAA5AEC3DAAA81B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RelatedPartyTransactionsByRelatedPartyAxis" xlink:label="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_2787C7970D407BCE52395AEC3DABEAD5" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_61D65E8336B352A5FBAA5AEC3DAAA81B" xlink:to="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_2787C7970D407BCE52395AEC3DABEAD5" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RelatedPartyDomain" xlink:label="loc_us-gaap_RelatedPartyDomain_BB341940CD29C62D4D8D5AEC3DAB6853" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_2787C7970D407BCE52395AEC3DABEAD5" xlink:to="loc_us-gaap_RelatedPartyDomain_BB341940CD29C62D4D8D5AEC3DAB6853" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PrincipalOwnerMember" xlink:label="loc_us-gaap_PrincipalOwnerMember_96A96B7D99E6A9B31ACD5AEC3DABD463" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RelatedPartyDomain_BB341940CD29C62D4D8D5AEC3DAB6853" xlink:to="loc_us-gaap_PrincipalOwnerMember_96A96B7D99E6A9B31ACD5AEC3DABD463" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AwardTypeAxis" xlink:label="loc_us-gaap_AwardTypeAxis_C7500FBEB917C16BBF785AEC3DAC200B" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_61D65E8336B352A5FBAA5AEC3DAAA81B" xlink:to="loc_us-gaap_AwardTypeAxis_C7500FBEB917C16BBF785AEC3DAC200B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_B926CC1AADE9F233E4E45AEC3DAC35D4" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AwardTypeAxis_C7500FBEB917C16BBF785AEC3DAC200B" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_B926CC1AADE9F233E4E45AEC3DAC35D4" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EmployeeStockOptionMember" xlink:label="loc_us-gaap_EmployeeStockOptionMember_4FE566C38225B6F038485AEC3DACF499" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_B926CC1AADE9F233E4E45AEC3DAC35D4" xlink:to="loc_us-gaap_EmployeeStockOptionMember_4FE566C38225B6F038485AEC3DACF499" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180930.xsd#lqdt_EmployeeStockOptionPerformanceBasedMember" xlink:label="loc_lqdt_EmployeeStockOptionPerformanceBasedMember_6E0B298751284976B6A35AEC3DAC9BD2" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_B926CC1AADE9F233E4E45AEC3DAC35D4" xlink:to="loc_lqdt_EmployeeStockOptionPerformanceBasedMember_6E0B298751284976B6A35AEC3DAC9BD2" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180930.xsd#lqdt_EmployeeStockOptionTimeBasedMember" xlink:label="loc_lqdt_EmployeeStockOptionTimeBasedMember_B5B37CADDD5DC482CB355AEC3DAD8CFA" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_B926CC1AADE9F233E4E45AEC3DAC35D4" xlink:to="loc_lqdt_EmployeeStockOptionTimeBasedMember_B5B37CADDD5DC482CB355AEC3DAD8CFA" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RestrictedStockMember" xlink:label="loc_us-gaap_RestrictedStockMember_C305722E48C6F58D46C55AEC3DAD7F4A" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_B926CC1AADE9F233E4E45AEC3DAC35D4" xlink:to="loc_us-gaap_RestrictedStockMember_C305722E48C6F58D46C55AEC3DAD7F4A" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180930.xsd#lqdt_RestrictedStockPerformanceBasedMember" xlink:label="loc_lqdt_RestrictedStockPerformanceBasedMember_E2D539C5713440BCBF2C5AEC3DAD5F47" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_B926CC1AADE9F233E4E45AEC3DAC35D4" xlink:to="loc_lqdt_RestrictedStockPerformanceBasedMember_E2D539C5713440BCBF2C5AEC3DAD5F47" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180930.xsd#lqdt_RestrictedStockTimeBasedMember" xlink:label="loc_lqdt_RestrictedStockTimeBasedMember_4205D3E11C8BD884B33B5AEC3DADE1D9" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_B926CC1AADE9F233E4E45AEC3DAC35D4" xlink:to="loc_lqdt_RestrictedStockTimeBasedMember_4205D3E11C8BD884B33B5AEC3DADE1D9" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StockAppreciationRightsSARSMember" xlink:label="loc_us-gaap_StockAppreciationRightsSARSMember_DE4CF17D915417ACAAC55AEC3DAD6ED1" xlink:type="locator" />
    <link:presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_B926CC1AADE9F233E4E45AEC3DAC35D4" xlink:to="loc_us-gaap_StockAppreciationRightsSARSMember_DE4CF17D915417ACAAC55AEC3DAD6ED1" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180930.xsd#lqdt_StockOptionsOrStockAppreciationRightsMember" xlink:label="loc_lqdt_StockOptionsOrStockAppreciationRightsMember_588781A78CA33C9DBFAE5AEC3DAD8894" xlink:type="locator" />
    <link:presentationArc order="8" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_B926CC1AADE9F233E4E45AEC3DAC35D4" xlink:to="loc_lqdt_StockOptionsOrStockAppreciationRightsMember_588781A78CA33C9DBFAE5AEC3DAD8894" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180930.xsd#lqdt_OtherThanStockOptionsOrStockAppreciationRightsMember" xlink:label="loc_lqdt_OtherThanStockOptionsOrStockAppreciationRightsMember_9A61EFCF26F2842B80C85AEC3DAD453E" xlink:type="locator" />
    <link:presentationArc order="9" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_B926CC1AADE9F233E4E45AEC3DAC35D4" xlink:to="loc_lqdt_OtherThanStockOptionsOrStockAppreciationRightsMember_9A61EFCF26F2842B80C85AEC3DAD453E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PerformanceSharesMember" xlink:label="loc_us-gaap_PerformanceSharesMember_CF9F0A992F7BD5F7D8BF5AEC3DAE2398" xlink:type="locator" />
    <link:presentationArc order="10" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_B926CC1AADE9F233E4E45AEC3DAC35D4" xlink:to="loc_us-gaap_PerformanceSharesMember_CF9F0A992F7BD5F7D8BF5AEC3DAE2398" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180930.xsd#lqdt_EmployeeAndNonEmployeesStockOptionMember" xlink:label="loc_lqdt_EmployeeAndNonEmployeesStockOptionMember_6D81221205811296C42B5AEC3DAE2188" xlink:type="locator" />
    <link:presentationArc order="11" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_B926CC1AADE9F233E4E45AEC3DAC35D4" xlink:to="loc_lqdt_EmployeeAndNonEmployeesStockOptionMember_6D81221205811296C42B5AEC3DAE2188" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180930.xsd#lqdt_IncentiveStockOptionsMember" xlink:label="loc_lqdt_IncentiveStockOptionsMember_21581E2EABF4F358507F5AEC3DAE34AB" xlink:type="locator" />
    <link:presentationArc order="12" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_B926CC1AADE9F233E4E45AEC3DAC35D4" xlink:to="loc_lqdt_IncentiveStockOptionsMember_21581E2EABF4F358507F5AEC3DAE34AB" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RangeAxis" xlink:label="loc_us-gaap_RangeAxis_276D07BADB0F1F2F673A5AEC3DAE030F" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_61D65E8336B352A5FBAA5AEC3DAAA81B" xlink:to="loc_us-gaap_RangeAxis_276D07BADB0F1F2F673A5AEC3DAE030F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RangeMember" xlink:label="loc_us-gaap_RangeMember_42EEEA5BFEF0EEEAC6635AEC3DAEC4EE" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RangeAxis_276D07BADB0F1F2F673A5AEC3DAE030F" xlink:to="loc_us-gaap_RangeMember_42EEEA5BFEF0EEEAC6635AEC3DAEC4EE" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_MinimumMember" xlink:label="loc_us-gaap_MinimumMember_568817B2FDC7B1F4CAF25AEC3DAF62E7" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RangeMember_42EEEA5BFEF0EEEAC6635AEC3DAEC4EE" xlink:to="loc_us-gaap_MinimumMember_568817B2FDC7B1F4CAF25AEC3DAF62E7" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_MaximumMember" xlink:label="loc_us-gaap_MaximumMember_1BFB10CA78F25896BC9D5AEC3DAFF69E" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RangeMember_42EEEA5BFEF0EEEAC6635AEC3DAEC4EE" xlink:to="loc_us-gaap_MaximumMember_1BFB10CA78F25896BC9D5AEC3DAFF69E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_29773778E6413A36A7C45AEC3DAF0725" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_61D65E8336B352A5FBAA5AEC3DAAA81B" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_29773778E6413A36A7C45AEC3DAF0725" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180930.xsd#lqdt_ShareBasedCompensationArrangementByShareBasedPaymentAwardActualPayoutAsPercentageOfEmployeeTargetPayout" xlink:label="loc_lqdt_ShareBasedCompensationArrangementByShareBasedPaymentAwardActualPayoutAsPercentageOfEmployeeTargetPayout_028BCE49C74E71919AC45AEC3DAF3F21" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_29773778E6413A36A7C45AEC3DAF0725" xlink:to="loc_lqdt_ShareBasedCompensationArrangementByShareBasedPaymentAwardActualPayoutAsPercentageOfEmployeeTargetPayout_028BCE49C74E71919AC45AEC3DAF3F21" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1_01F0D189248B743DC7495AEC3DAF3028" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_29773778E6413A36A7C45AEC3DAF0725" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1_01F0D189248B743DC7495AEC3DAF3028" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized_1CF8BFFABA72A30857745AEC3DB0F212" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_29773778E6413A36A7C45AEC3DAF0725" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized_1CF8BFFABA72A30857745AEC3DB0F212" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant_EBF35BAD7758AAC1260F5AEC3DB04DDA" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_29773778E6413A36A7C45AEC3DAF0725" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant_EBF35BAD7758AAC1260F5AEC3DB04DDA" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfAdditionalSharesAuthorized" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfAdditionalSharesAuthorized_C07B8D1952F5BBD4050F5AEC3DB0E84D" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_29773778E6413A36A7C45AEC3DAF0725" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfAdditionalSharesAuthorized_C07B8D1952F5BBD4050F5AEC3DB0E84D" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180930.xsd#lqdt_NumberOfSharesCountedForGrantsOfFullValueAwardsFromReserve" xlink:label="loc_lqdt_NumberOfSharesCountedForGrantsOfFullValueAwardsFromReserve_C52385AAC3ACEDBC8EAC5AEC3DB09EAC" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_29773778E6413A36A7C45AEC3DAF0725" xlink:to="loc_lqdt_NumberOfSharesCountedForGrantsOfFullValueAwardsFromReserve_C52385AAC3ACEDBC8EAC5AEC3DB09EAC" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_56BDB135A5E1996A782F5AEC3DB075E9" xlink:type="locator" />
    <link:presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_29773778E6413A36A7C45AEC3DAF0725" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_56BDB135A5E1996A782F5AEC3DB075E9" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_20BEAFD6F49FDA3D5FB45AEC3DB0185D" xlink:type="locator" />
    <link:presentationArc order="8" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_29773778E6413A36A7C45AEC3DAF0725" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_20BEAFD6F49FDA3D5FB45AEC3DB0185D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod_58F28ECFACA27A9F50445AEC3DB1E1FF" xlink:type="locator" />
    <link:presentationArc order="9" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_29773778E6413A36A7C45AEC3DAF0725" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod_58F28ECFACA27A9F50445AEC3DB1E1FF" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180930.xsd#lqdt_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAwardedPerPersonPerYear" xlink:label="loc_lqdt_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAwardedPerPersonPerYear_2FA6EB43E2DF706458905AEC3DB15D96" xlink:type="locator" />
    <link:presentationArc order="10" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_29773778E6413A36A7C45AEC3DAF0725" xlink:to="loc_lqdt_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAwardedPerPersonPerYear_2FA6EB43E2DF706458905AEC3DB15D96" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AllocatedShareBasedCompensationExpense" xlink:label="loc_us-gaap_AllocatedShareBasedCompensationExpense_69AB0FADFF6897D5B2FD5AEC3DB16CF0" xlink:type="locator" />
    <link:presentationArc order="11" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_29773778E6413A36A7C45AEC3DAF0725" xlink:to="loc_us-gaap_AllocatedShareBasedCompensationExpense_69AB0FADFF6897D5B2FD5AEC3DB16CF0" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EmployeeServiceShareBasedCompensationAggregateDisclosuresAbstract" xlink:label="loc_us-gaap_EmployeeServiceShareBasedCompensationAggregateDisclosuresAbstract_0F55EF7974E258A5A2B25AEC3DB10DF5" xlink:type="locator" />
    <link:presentationArc order="12" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_29773778E6413A36A7C45AEC3DAF0725" xlink:to="loc_us-gaap_EmployeeServiceShareBasedCompensationAggregateDisclosuresAbstract_0F55EF7974E258A5A2B25AEC3DB10DF5" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized" xlink:label="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized_63FD35C1A46372DD06995AEC3DB1212C" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EmployeeServiceShareBasedCompensationAggregateDisclosuresAbstract_0F55EF7974E258A5A2B25AEC3DB10DF5" xlink:to="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized_63FD35C1A46372DD06995AEC3DB1212C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1" xlink:label="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1_5201197DC75FC2A3ADF75AEC3DB22B8A" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EmployeeServiceShareBasedCompensationAggregateDisclosuresAbstract_0F55EF7974E258A5A2B25AEC3DB10DF5" xlink:to="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1_5201197DC75FC2A3ADF75AEC3DB22B8A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardPurchasePriceOfCommonStockPercent" xlink:label="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardPurchasePriceOfCommonStockPercent_FF44F1A3E95C443BB0535AEC3DB209D1" xlink:type="locator" />
    <link:presentationArc order="13" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_29773778E6413A36A7C45AEC3DAF0725" xlink:to="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardPurchasePriceOfCommonStockPercent_FF44F1A3E95C443BB0535AEC3DB209D1" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardExpirationPeriod" xlink:label="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardExpirationPeriod_5DFBCF316798EE3539F05AEC3DB2E3B1" xlink:type="locator" />
    <link:presentationArc order="14" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_29773778E6413A36A7C45AEC3DAF0725" xlink:to="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardExpirationPeriod_5DFBCF316798EE3539F05AEC3DB2E3B1" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://liquidityservices.com/role/EquityTransactionsAcquisitionDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StockholdersEquityNoteAbstract" xlink:label="loc_us-gaap_StockholdersEquityNoteAbstract_30FE451F7E3EEB99158C7EE942E66009" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable" xlink:label="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_89D9B02FC08397162D167EE942E6A74E" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StockholdersEquityNoteAbstract_30FE451F7E3EEB99158C7EE942E66009" xlink:to="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_89D9B02FC08397162D167EE942E6A74E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_TitleOfIndividualAxis" xlink:label="loc_us-gaap_TitleOfIndividualAxis_1DA44257F53C6F2B0B817EE942E68C8F" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_89D9B02FC08397162D167EE942E6A74E" xlink:to="loc_us-gaap_TitleOfIndividualAxis_1DA44257F53C6F2B0B817EE942E68C8F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_TitleOfIndividualWithRelationshipToEntityDomain" xlink:label="loc_us-gaap_TitleOfIndividualWithRelationshipToEntityDomain_BC41E90229886FF28B0B7EE942E7DC91" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_TitleOfIndividualAxis_1DA44257F53C6F2B0B817EE942E68C8F" xlink:to="loc_us-gaap_TitleOfIndividualWithRelationshipToEntityDomain_BC41E90229886FF28B0B7EE942E7DC91" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ExecutiveOfficerMember" xlink:label="loc_us-gaap_ExecutiveOfficerMember_6C3D9C62350E8482CAB67EE942E77125" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_TitleOfIndividualWithRelationshipToEntityDomain_BC41E90229886FF28B0B7EE942E7DC91" xlink:to="loc_us-gaap_ExecutiveOfficerMember_6C3D9C62350E8482CAB67EE942E77125" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AwardTypeAxis" xlink:label="loc_us-gaap_AwardTypeAxis_939A39FF4E042B6BFD7C7EE942E8D56B" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_89D9B02FC08397162D167EE942E6A74E" xlink:to="loc_us-gaap_AwardTypeAxis_939A39FF4E042B6BFD7C7EE942E8D56B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_EF15D378CB94FC40AED27EE942E899D8" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AwardTypeAxis_939A39FF4E042B6BFD7C7EE942E8D56B" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_EF15D378CB94FC40AED27EE942E899D8" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RestrictedStockUnitsRSUMember" xlink:label="loc_us-gaap_RestrictedStockUnitsRSUMember_B23BAB0520DCD972CAF77EE942E8DB3C" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_EF15D378CB94FC40AED27EE942E899D8" xlink:to="loc_us-gaap_RestrictedStockUnitsRSUMember_B23BAB0520DCD972CAF77EE942E8DB3C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RestrictedStockMember" xlink:label="loc_us-gaap_RestrictedStockMember_DD2F29E79D51B966D5647EE942E832F0" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_EF15D378CB94FC40AED27EE942E899D8" xlink:to="loc_us-gaap_RestrictedStockMember_DD2F29E79D51B966D5647EE942E832F0" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EmployeeStockOptionMember" xlink:label="loc_us-gaap_EmployeeStockOptionMember_F7EEFAFAC3B6D1E828067EE942E96B54" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_EF15D378CB94FC40AED27EE942E899D8" xlink:to="loc_us-gaap_EmployeeStockOptionMember_F7EEFAFAC3B6D1E828067EE942E96B54" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessAcquisitionAxis" xlink:label="loc_us-gaap_BusinessAcquisitionAxis_1FC2A0CDE3966A41298E7EE942E98264" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_89D9B02FC08397162D167EE942E6A74E" xlink:to="loc_us-gaap_BusinessAcquisitionAxis_1FC2A0CDE3966A41298E7EE942E98264" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessAcquisitionAcquireeDomain" xlink:label="loc_us-gaap_BusinessAcquisitionAcquireeDomain_7EA8C5727647807B47F47EE942E91E60" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_BusinessAcquisitionAxis_1FC2A0CDE3966A41298E7EE942E98264" xlink:to="loc_us-gaap_BusinessAcquisitionAcquireeDomain_7EA8C5727647807B47F47EE942E91E60" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180930.xsd#lqdt_MachinioCorporationMember" xlink:label="loc_lqdt_MachinioCorporationMember_3798383BA1D2ABA37D257EE942EAF6F4" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_BusinessAcquisitionAcquireeDomain_7EA8C5727647807B47F47EE942E91E60" xlink:to="loc_lqdt_MachinioCorporationMember_3798383BA1D2ABA37D257EE942EAF6F4" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PlanNameAxis" xlink:label="loc_us-gaap_PlanNameAxis_C9800E7D62A84CC157D67EE942EAC17F" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_89D9B02FC08397162D167EE942E6A74E" xlink:to="loc_us-gaap_PlanNameAxis_C9800E7D62A84CC157D67EE942EAC17F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PlanNameDomain" xlink:label="loc_us-gaap_PlanNameDomain_CA35CC48D13F31E8A35B7EE942EAD118" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PlanNameAxis_C9800E7D62A84CC157D67EE942EAC17F" xlink:to="loc_us-gaap_PlanNameDomain_CA35CC48D13F31E8A35B7EE942EAD118" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180930.xsd#lqdt_MachinioCorporation2014StockIncentivePlanMember" xlink:label="loc_lqdt_MachinioCorporation2014StockIncentivePlanMember_F55E7642A93CAFA6BBE47EE942EA28AF" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PlanNameDomain_CA35CC48D13F31E8A35B7EE942EAD118" xlink:to="loc_lqdt_MachinioCorporation2014StockIncentivePlanMember_F55E7642A93CAFA6BBE47EE942EA28AF" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180930.xsd#lqdt_A2006OmnibusLongTermIncentivePlanMember" xlink:label="loc_lqdt_A2006OmnibusLongTermIncentivePlanMember_73F34A621F92A39965417EE942EBEF25" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PlanNameDomain_CA35CC48D13F31E8A35B7EE942EAD118" xlink:to="loc_lqdt_A2006OmnibusLongTermIncentivePlanMember_73F34A621F92A39965417EE942EBEF25" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_F7376EB07A7E5D7A953E7EE942EB3969" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_89D9B02FC08397162D167EE942E6A74E" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_F7376EB07A7E5D7A953E7EE942EB3969" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardSharesIssuedInPeriod" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardSharesIssuedInPeriod_17BB86DB40150A27F93E7EE942EC9A71" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_F7376EB07A7E5D7A953E7EE942EB3969" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardSharesIssuedInPeriod_17BB86DB40150A27F93E7EE942EC9A71" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180930.xsd#lqdt_ShareBasedCompensationArrangementByShareBasedPaymentAwardSharesIssuedInPeriodValue" xlink:label="loc_lqdt_ShareBasedCompensationArrangementByShareBasedPaymentAwardSharesIssuedInPeriodValue_E29F8BA42005269CAADA7EE942ECAE52" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_F7376EB07A7E5D7A953E7EE942EB3969" xlink:to="loc_lqdt_ShareBasedCompensationArrangementByShareBasedPaymentAwardSharesIssuedInPeriodValue_E29F8BA42005269CAADA7EE942ECAE52" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://liquidityservices.com/role/EquityTransactionsEmployeeOptionsDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StockholdersEquityNoteAbstract" xlink:label="loc_us-gaap_StockholdersEquityNoteAbstract_B095B7EDA29255622376FA50773DB349" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable" xlink:label="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_4B9A78B34557AD347F69FA50773E0887" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StockholdersEquityNoteAbstract_B095B7EDA29255622376FA50773DB349" xlink:to="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_4B9A78B34557AD347F69FA50773E0887" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AwardTypeAxis" xlink:label="loc_us-gaap_AwardTypeAxis_EAE27052CA7CA0AB6BE2FA50773E8EFA" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_4B9A78B34557AD347F69FA50773E0887" xlink:to="loc_us-gaap_AwardTypeAxis_EAE27052CA7CA0AB6BE2FA50773E8EFA" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_2DFEDF140EA94084EA7DFA50773E3BE0" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AwardTypeAxis_EAE27052CA7CA0AB6BE2FA50773E8EFA" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_2DFEDF140EA94084EA7DFA50773E3BE0" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180930.xsd#lqdt_EmployeeAndNonEmployeesStockOptionMember" xlink:label="loc_lqdt_EmployeeAndNonEmployeesStockOptionMember_EDB1F7676BB266CD8316FA50773FCA0E" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_2DFEDF140EA94084EA7DFA50773E3BE0" xlink:to="loc_lqdt_EmployeeAndNonEmployeesStockOptionMember_EDB1F7676BB266CD8316FA50773FCA0E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_C048FC8941088E86ABD4FA50774002B3" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_4B9A78B34557AD347F69FA50773E0887" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_C048FC8941088E86ABD4FA50774002B3" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingRollForward" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingRollForward_20CFEB2B3779154F7A10FA5077405B5E" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_C048FC8941088E86ABD4FA50774002B3" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingRollForward_20CFEB2B3779154F7A10FA5077405B5E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber_8EC485436D99D757702BFA5077408E63" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/periodStartLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingRollForward_20CFEB2B3779154F7A10FA5077405B5E" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber_8EC485436D99D757702BFA5077408E63" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross_0393588035DAC8C05AB3FA50774113E6" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingRollForward_20CFEB2B3779154F7A10FA5077405B5E" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross_0393588035DAC8C05AB3FA50774113E6" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180930.xsd#lqdt_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAcquiredInPeriod" xlink:label="loc_lqdt_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAcquiredInPeriod_72430C44A26E289CF2B8FA5077419A93" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingRollForward_20CFEB2B3779154F7A10FA5077405B5E" xlink:to="loc_lqdt_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAcquiredInPeriod_72430C44A26E289CF2B8FA5077419A93" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised" xlink:label="loc_us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised_F3DAB95890118358629EFA507741F351" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingRollForward_20CFEB2B3779154F7A10FA5077405B5E" xlink:to="loc_us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised_F3DAB95890118358629EFA507741F351" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod_69B5C789AFDF1DB639D3FA5077419C47" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingRollForward_20CFEB2B3779154F7A10FA5077405B5E" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod_69B5C789AFDF1DB639D3FA5077419C47" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber_CFE065CF7B7C677B789FFA5077418D88" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/periodEndLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingRollForward_20CFEB2B3779154F7A10FA5077405B5E" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber_CFE065CF7B7C677B789FFA5077418D88" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber_88E31DDF1D01C278A7CBFA507742061E" xlink:type="locator" />
    <link:presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingRollForward_20CFEB2B3779154F7A10FA5077405B5E" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber_88E31DDF1D01C278A7CBFA507742061E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePriceRollforward" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePriceRollforward_1CEC461679D27E06E567FA507742CA33" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_C048FC8941088E86ABD4FA50774002B3" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePriceRollforward_1CEC461679D27E06E567FA507742CA33" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice_32030713E37B7D29FF90FA507742537F" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/periodStartLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePriceRollforward_1CEC461679D27E06E567FA507742CA33" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice_32030713E37B7D29FF90FA507742537F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice_8D7B8A8DF5D19E665FD5FA507743E9D6" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePriceRollforward_1CEC461679D27E06E567FA507742CA33" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice_8D7B8A8DF5D19E665FD5FA507743E9D6" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180930.xsd#lqdt_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAcquiredinPeriodWeightedAverageExercisePrice" xlink:label="loc_lqdt_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAcquiredinPeriodWeightedAverageExercisePrice_D8B48D73A1FFD6165378FA507743EDDA" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePriceRollforward_1CEC461679D27E06E567FA507742CA33" xlink:to="loc_lqdt_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAcquiredinPeriodWeightedAverageExercisePrice_D8B48D73A1FFD6165378FA507743EDDA" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice_4707641D90C29F15D783FA5077439D6D" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePriceRollforward_1CEC461679D27E06E567FA507742CA33" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice_4707641D90C29F15D783FA5077439D6D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice_E1328A3913EAFCB086EFFA5077438F55" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePriceRollforward_1CEC461679D27E06E567FA507742CA33" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice_E1328A3913EAFCB086EFFA5077438F55" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice_B08BECF6B822E368BDC6FA5077441649" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/periodEndLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePriceRollforward_1CEC461679D27E06E567FA507742CA33" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice_B08BECF6B822E368BDC6FA5077441649" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice_F2A498EC6297A59E8995FA507744960D" xlink:type="locator" />
    <link:presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePriceRollforward_1CEC461679D27E06E567FA507742CA33" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice_F2A498EC6297A59E8995FA507744960D" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://liquidityservices.com/role/EquityTransactionsFairValueDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StockholdersEquityNoteAbstract" xlink:label="loc_us-gaap_StockholdersEquityNoteAbstract_D20231B9A585ADF82A7A845A01C233D3" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable" xlink:label="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_94607F09A12582C70851845A01C3D78E" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StockholdersEquityNoteAbstract_D20231B9A585ADF82A7A845A01C233D3" xlink:to="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_94607F09A12582C70851845A01C3D78E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AwardTypeAxis" xlink:label="loc_us-gaap_AwardTypeAxis_3EDB259030C10E893783845A01C3EEB5" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_94607F09A12582C70851845A01C3D78E" xlink:to="loc_us-gaap_AwardTypeAxis_3EDB259030C10E893783845A01C3EEB5" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_00393AACB4032A51D419845A01C431D4" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AwardTypeAxis_3EDB259030C10E893783845A01C3EEB5" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_00393AACB4032A51D419845A01C431D4" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180930.xsd#lqdt_EmployeeAndNonEmployeesStockOptionMember" xlink:label="loc_lqdt_EmployeeAndNonEmployeesStockOptionMember_D16581A23F11AFB3501A845A01C41D03" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_00393AACB4032A51D419845A01C431D4" xlink:to="loc_lqdt_EmployeeAndNonEmployeesStockOptionMember_D16581A23F11AFB3501A845A01C41D03" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RangeAxis" xlink:label="loc_us-gaap_RangeAxis_22C3C16BE012E31BB743845A01C4BCA2" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_94607F09A12582C70851845A01C3D78E" xlink:to="loc_us-gaap_RangeAxis_22C3C16BE012E31BB743845A01C4BCA2" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RangeMember" xlink:label="loc_us-gaap_RangeMember_F80E105A89DDB119744A845A01C4AD76" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RangeAxis_22C3C16BE012E31BB743845A01C4BCA2" xlink:to="loc_us-gaap_RangeMember_F80E105A89DDB119744A845A01C4AD76" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_MinimumMember" xlink:label="loc_us-gaap_MinimumMember_0C979590EC81F145B89A845A01C58A6D" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RangeMember_F80E105A89DDB119744A845A01C4AD76" xlink:to="loc_us-gaap_MinimumMember_0C979590EC81F145B89A845A01C58A6D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_MaximumMember" xlink:label="loc_us-gaap_MaximumMember_EA162561BFC4A393F9BE845A01C57032" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RangeMember_F80E105A89DDB119744A845A01C4AD76" xlink:to="loc_us-gaap_MaximumMember_EA162561BFC4A393F9BE845A01C57032" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_8D3EACCDD66D341E7739845A01C544EF" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_94607F09A12582C70851845A01C3D78E" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_8D3EACCDD66D341E7739845A01C544EF" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsAndMethodologyAbstract" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsAndMethodologyAbstract_80C12AE8BB7D8D3412E7845A01C6703D" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_8D3EACCDD66D341E7739845A01C544EF" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsAndMethodologyAbstract_80C12AE8BB7D8D3412E7845A01C6703D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate_51E3FFBBB97489AFCEEC845A01C60FD5" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsAndMethodologyAbstract_80C12AE8BB7D8D3412E7845A01C6703D" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate_51E3FFBBB97489AFCEEC845A01C60FD5" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateMinimum" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateMinimum_B83C42CFCCB064548AA4845A01C6705B" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsAndMethodologyAbstract_80C12AE8BB7D8D3412E7845A01C6703D" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateMinimum_B83C42CFCCB064548AA4845A01C6705B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateMaximum" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateMaximum_C69F1335762244277F0D845A01C72425" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsAndMethodologyAbstract_80C12AE8BB7D8D3412E7845A01C6703D" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateMaximum_C69F1335762244277F0D845A01C72425" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMinimum" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMinimum_BCEEDA9B57C12BCB55A2845A01C7E72E" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsAndMethodologyAbstract_80C12AE8BB7D8D3412E7845A01C6703D" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMinimum_BCEEDA9B57C12BCB55A2845A01C7E72E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMaximum" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMaximum_FCA1770BD01455876921845A01C76C70" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsAndMethodologyAbstract_80C12AE8BB7D8D3412E7845A01C6703D" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMaximum_FCA1770BD01455876921845A01C76C70" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1" xlink:label="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1_69918AB99610AD1A6B80845A01C738CF" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsAndMethodologyAbstract_80C12AE8BB7D8D3412E7845A01C6703D" xlink:to="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1_69918AB99610AD1A6B80845A01C738CF" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAdditionalDisclosuresAbstract" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAdditionalDisclosuresAbstract_2142E887D264290CD8F4845A01C78B49" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_8D3EACCDD66D341E7739845A01C544EF" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAdditionalDisclosuresAbstract_2142E887D264290CD8F4845A01C78B49" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue_01C84AE99B5F47CB9439845A01C86316" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAdditionalDisclosuresAbstract_2142E887D264290CD8F4845A01C78B49" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue_01C84AE99B5F47CB9439845A01C86316" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1" xlink:label="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1_55E4DD4931B5870A56B0845A01C898C8" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAdditionalDisclosuresAbstract_2142E887D264290CD8F4845A01C78B49" xlink:to="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1_55E4DD4931B5870A56B0845A01C898C8" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SharePrice" xlink:label="loc_us-gaap_SharePrice_86B835F32180A34018AD845A01C894DE" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAdditionalDisclosuresAbstract_2142E887D264290CD8F4845A01C78B49" xlink:to="loc_us-gaap_SharePrice_86B835F32180A34018AD845A01C894DE" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_CE55A29B3DFDFF30F3E9845A01C8CD6F" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAdditionalDisclosuresAbstract_2142E887D264290CD8F4845A01C78B49" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_CE55A29B3DFDFF30F3E9845A01C8CD6F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue_52BF98D9C05FEED4313C845A01C976B5" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAdditionalDisclosuresAbstract_2142E887D264290CD8F4845A01C78B49" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue_52BF98D9C05FEED4313C845A01C976B5" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingNumber" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingNumber_B46E3D4F4917C5624925845A01C92B86" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAdditionalDisclosuresAbstract_2142E887D264290CD8F4845A01C78B49" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingNumber_B46E3D4F4917C5624925845A01C92B86" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://liquidityservices.com/role/EquityTransactionsOptionsDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StockholdersEquityNoteAbstract" xlink:label="loc_us-gaap_StockholdersEquityNoteAbstract_B3FAE1272593F76AA3D186E5D7384982" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeTable" xlink:label="loc_us-gaap_ScheduleOfShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeTable_B9716EC12C846E63F59086E5D7380045" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StockholdersEquityNoteAbstract_B3FAE1272593F76AA3D186E5D7384982" xlink:to="loc_us-gaap_ScheduleOfShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeTable_B9716EC12C846E63F59086E5D7380045" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis" xlink:label="loc_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis_C0D1A453F466EC79808486E5D738C43B" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeTable_B9716EC12C846E63F59086E5D7380045" xlink:to="loc_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis_C0D1A453F466EC79808486E5D738C43B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeDomain" xlink:label="loc_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeDomain_EAB42DFB34C8A092BE9786E5D739AC9D" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis_C0D1A453F466EC79808486E5D738C43B" xlink:to="loc_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeDomain_EAB42DFB34C8A092BE9786E5D739AC9D" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180930.xsd#lqdt_ExercisePriceRangeOneMember" xlink:label="loc_lqdt_ExercisePriceRangeOneMember_5D9430EEC899AAC6994786E5D7394BF2" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeDomain_EAB42DFB34C8A092BE9786E5D739AC9D" xlink:to="loc_lqdt_ExercisePriceRangeOneMember_5D9430EEC899AAC6994786E5D7394BF2" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180930.xsd#lqdt_ExercisePriceRangeTwoMember" xlink:label="loc_lqdt_ExercisePriceRangeTwoMember_48D935C05C3661D445D486E5D739D6DD" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeDomain_EAB42DFB34C8A092BE9786E5D739AC9D" xlink:to="loc_lqdt_ExercisePriceRangeTwoMember_48D935C05C3661D445D486E5D739D6DD" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180930.xsd#lqdt_ExercisePriceRangeThreeMember" xlink:label="loc_lqdt_ExercisePriceRangeThreeMember_3AF91E29A0BCF97925EE86E5D739F882" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeDomain_EAB42DFB34C8A092BE9786E5D739AC9D" xlink:to="loc_lqdt_ExercisePriceRangeThreeMember_3AF91E29A0BCF97925EE86E5D739F882" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180930.xsd#lqdt_ExercisePriceRangeFourMember" xlink:label="loc_lqdt_ExercisePriceRangeFourMember_0AE6E5084BE0C05744F486E5D73A8845" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeDomain_EAB42DFB34C8A092BE9786E5D739AC9D" xlink:to="loc_lqdt_ExercisePriceRangeFourMember_0AE6E5084BE0C05744F486E5D73A8845" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180930.xsd#lqdt_ExercisePriceRangeFiveMember" xlink:label="loc_lqdt_ExercisePriceRangeFiveMember_96C925A62B9176096BF186E5D73A7E64" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeDomain_EAB42DFB34C8A092BE9786E5D739AC9D" xlink:to="loc_lqdt_ExercisePriceRangeFiveMember_96C925A62B9176096BF186E5D73A7E64" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLineItems" xlink:label="loc_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLineItems_FBF6B7251ACAEFC03F5B86E5D73AD498" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeTable_B9716EC12C846E63F59086E5D7380045" xlink:to="loc_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLineItems_FBF6B7251ACAEFC03F5B86E5D73AD498" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLowerRangeLimit" xlink:label="loc_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLowerRangeLimit_4391365C9EC2A3E74C0D86E5D73AEC19" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLineItems_FBF6B7251ACAEFC03F5B86E5D73AD498" xlink:to="loc_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLowerRangeLimit_4391365C9EC2A3E74C0D86E5D73AEC19" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeUpperRangeLimit" xlink:label="loc_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeUpperRangeLimit_AD80DA4C9B26FB966DDF86E5D73B6E08" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLineItems_FBF6B7251ACAEFC03F5B86E5D73AD498" xlink:to="loc_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeUpperRangeLimit_AD80DA4C9B26FB966DDF86E5D73B6E08" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeEndOfPeriodAbstract" xlink:label="loc_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeEndOfPeriodAbstract_DAC5F1A7FFF4F27D169286E5D73B7577" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLineItems_FBF6B7251ACAEFC03F5B86E5D73AD498" xlink:to="loc_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeEndOfPeriodAbstract_DAC5F1A7FFF4F27D169286E5D73B7577" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfOutstandingOptions" xlink:label="loc_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfOutstandingOptions_75E481AB4513CC02312186E5D73B031B" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeEndOfPeriodAbstract_DAC5F1A7FFF4F27D169286E5D73B7577" xlink:to="loc_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfOutstandingOptions_75E481AB4513CC02312186E5D73B031B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageRemainingContractualTerm2" xlink:label="loc_us-gaap_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageRemainingContractualTerm2_903AB426A30868B7F2E886E5D73C7F1B" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeEndOfPeriodAbstract_DAC5F1A7FFF4F27D169286E5D73B7577" xlink:to="loc_us-gaap_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageRemainingContractualTerm2_903AB426A30868B7F2E886E5D73C7F1B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageExercisePriceBeginningBalance1" xlink:label="loc_us-gaap_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageExercisePriceBeginningBalance1_6F471626AF4334BF52A386E5D73C1EFB" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeEndOfPeriodAbstract_DAC5F1A7FFF4F27D169286E5D73B7577" xlink:to="loc_us-gaap_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageExercisePriceBeginningBalance1_6F471626AF4334BF52A386E5D73C1EFB" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180930.xsd#lqdt_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOptionsExercisableAbstract" xlink:label="loc_lqdt_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOptionsExercisableAbstract_6B1F2A63270900AE96ED86E5D73D29B0" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLineItems_FBF6B7251ACAEFC03F5B86E5D73AD498" xlink:to="loc_lqdt_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOptionsExercisableAbstract_6B1F2A63270900AE96ED86E5D73D29B0" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfExercisableOptions" xlink:label="loc_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfExercisableOptions_6315E1567DA4797BF65286E5D73DEE26" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_lqdt_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOptionsExercisableAbstract_6B1F2A63270900AE96ED86E5D73D29B0" xlink:to="loc_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfExercisableOptions_6315E1567DA4797BF65286E5D73DEE26" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeExercisableOptionsWeightedAverageRemainingContractualTerm2" xlink:label="loc_us-gaap_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeExercisableOptionsWeightedAverageRemainingContractualTerm2_2058B87542F08582110986E5D73D2EA6" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_lqdt_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOptionsExercisableAbstract_6B1F2A63270900AE96ED86E5D73D29B0" xlink:to="loc_us-gaap_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeExercisableOptionsWeightedAverageRemainingContractualTerm2_2058B87542F08582110986E5D73D2EA6" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeExercisableOptionsWeightedAverageExercisePrice1" xlink:label="loc_us-gaap_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeExercisableOptionsWeightedAverageExercisePrice1_B5794ACB1717EB3D471B86E5D73D2250" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_lqdt_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOptionsExercisableAbstract_6B1F2A63270900AE96ED86E5D73D29B0" xlink:to="loc_us-gaap_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeExercisableOptionsWeightedAverageExercisePrice1_B5794ACB1717EB3D471B86E5D73D2250" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://liquidityservices.com/role/EquityTransactionsRepurchaseProgramDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StockholdersEquityNoteAbstract" xlink:label="loc_us-gaap_StockholdersEquityNoteAbstract_E2F6384065FD871CBC952CCC16C31AE2" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_TreasuryStockSharesAcquired" xlink:label="loc_us-gaap_TreasuryStockSharesAcquired_7854A065822549EF83932CCC16C35593" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StockholdersEquityNoteAbstract_E2F6384065FD871CBC952CCC16C31AE2" xlink:to="loc_us-gaap_TreasuryStockSharesAcquired_7854A065822549EF83932CCC16C35593" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1" xlink:label="loc_us-gaap_StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1_4FD054EFFCEE35F3380D2CCC16C4C2C9" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StockholdersEquityNoteAbstract_E2F6384065FD871CBC952CCC16C31AE2" xlink:to="loc_us-gaap_StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1_4FD054EFFCEE35F3380D2CCC16C4C2C9" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://liquidityservices.com/role/EquityTransactionsRestrictedSharesDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StockholdersEquityNoteAbstract" xlink:label="loc_us-gaap_StockholdersEquityNoteAbstract_CD5641070857D1D6C54B845A01B0A8B9" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable" xlink:label="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_C80F519A8B97BEFE6946845A01B105BC" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StockholdersEquityNoteAbstract_CD5641070857D1D6C54B845A01B0A8B9" xlink:to="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_C80F519A8B97BEFE6946845A01B105BC" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AwardTypeAxis" xlink:label="loc_us-gaap_AwardTypeAxis_2BFCC362C97BF266A03D845A01B1E9FD" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_C80F519A8B97BEFE6946845A01B105BC" xlink:to="loc_us-gaap_AwardTypeAxis_2BFCC362C97BF266A03D845A01B1E9FD" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_0CA642AC79D8DE9B222A845A01B180FD" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AwardTypeAxis_2BFCC362C97BF266A03D845A01B1E9FD" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_0CA642AC79D8DE9B222A845A01B180FD" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RestrictedStockMember" xlink:label="loc_us-gaap_RestrictedStockMember_0022FF8F4A8E6AC48F3A845A01B25933" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_0CA642AC79D8DE9B222A845A01B180FD" xlink:to="loc_us-gaap_RestrictedStockMember_0022FF8F4A8E6AC48F3A845A01B25933" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RestrictedStockUnitsRSUMember" xlink:label="loc_us-gaap_RestrictedStockUnitsRSUMember_F3AD400EE1FA0BE6C15B845A01B249A3" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_0CA642AC79D8DE9B222A845A01B180FD" xlink:to="loc_us-gaap_RestrictedStockUnitsRSUMember_F3AD400EE1FA0BE6C15B845A01B249A3" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_40063699CC0E731DB700845A01B20400" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_C80F519A8B97BEFE6946845A01B105BC" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_40063699CC0E731DB700845A01B20400" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_7123CC720AF91C1B8F8F845A01B368E2" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_40063699CC0E731DB700845A01B20400" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_7123CC720AF91C1B8F8F845A01B368E2" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber_874BDFCDA9AFB4D51B5D845A01B3C2DA" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/periodStartLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_7123CC720AF91C1B8F8F845A01B368E2" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber_874BDFCDA9AFB4D51B5D845A01B3C2DA" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_AA3426C903D12739231D845A01B3F7C8" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_7123CC720AF91C1B8F8F845A01B368E2" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_AA3426C903D12739231D845A01B3F7C8" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod_1DD62C85AE29FA106CE7845A01B390A2" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_7123CC720AF91C1B8F8F845A01B368E2" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod_1DD62C85AE29FA106CE7845A01B390A2" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod_9CD5B543D19A9259B28B845A01B4F7CC" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_7123CC720AF91C1B8F8F845A01B368E2" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod_9CD5B543D19A9259B28B845A01B4F7CC" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber_1816C70B4B5B1EE5ABAB845A01B4997E" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/periodEndLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_7123CC720AF91C1B8F8F845A01B368E2" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber_1816C70B4B5B1EE5ABAB845A01B4997E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_585D8953DF33CDCE8CF0845A01B47820" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_40063699CC0E731DB700845A01B20400" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_585D8953DF33CDCE8CF0845A01B47820" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue_A87A9643D3BB09AAA22A845A01B44F34" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/periodStartLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_585D8953DF33CDCE8CF0845A01B47820" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue_A87A9643D3BB09AAA22A845A01B44F34" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_A0FD1E2FB6EE24A4C6EA845A01B54E51" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_585D8953DF33CDCE8CF0845A01B47820" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_A0FD1E2FB6EE24A4C6EA845A01B54E51" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue_6C7F8A2FD923CD37BF0E845A01B54A41" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_585D8953DF33CDCE8CF0845A01B47820" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue_6C7F8A2FD923CD37BF0E845A01B54A41" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue_5E1D0FECC062676B9A51845A01B5C5A0" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_585D8953DF33CDCE8CF0845A01B47820" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue_5E1D0FECC062676B9A51845A01B5C5A0" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue_BE8E4DD7EF02E306F091845A01B558B9" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/periodEndLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_585D8953DF33CDCE8CF0845A01B47820" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue_BE8E4DD7EF02E306F091845A01B558B9" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EmployeeServiceShareBasedCompensationAggregateDisclosuresAbstract" xlink:label="loc_us-gaap_EmployeeServiceShareBasedCompensationAggregateDisclosuresAbstract_48BD21FE0E5B4592FE9E845A01B6E457" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_40063699CC0E731DB700845A01B20400" xlink:to="loc_us-gaap_EmployeeServiceShareBasedCompensationAggregateDisclosuresAbstract_48BD21FE0E5B4592FE9E845A01B6E457" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180930.xsd#lqdt_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedTotalIntrinsicValue" xlink:label="loc_lqdt_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedTotalIntrinsicValue_15AC2B48CF7EEF3FD113845A01B69AEA" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EmployeeServiceShareBasedCompensationAggregateDisclosuresAbstract_48BD21FE0E5B4592FE9E845A01B6E457" xlink:to="loc_lqdt_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedTotalIntrinsicValue_15AC2B48CF7EEF3FD113845A01B69AEA" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsOutstandingWeightedAverageRemainingContractualTerms" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsOutstandingWeightedAverageRemainingContractualTerms_CC7BA78C61E9E101ADF4845A01B6DE4B" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EmployeeServiceShareBasedCompensationAggregateDisclosuresAbstract_48BD21FE0E5B4592FE9E845A01B6E457" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsOutstandingWeightedAverageRemainingContractualTerms_CC7BA78C61E9E101ADF4845A01B6DE4B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SharePrice" xlink:label="loc_us-gaap_SharePrice_6983D1A5D5755CE36C87845A01B7159C" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EmployeeServiceShareBasedCompensationAggregateDisclosuresAbstract_48BD21FE0E5B4592FE9E845A01B6E457" xlink:to="loc_us-gaap_SharePrice_6983D1A5D5755CE36C87845A01B7159C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingNumber" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingNumber_39705C928846A8DDA8CD845A01B7D57D" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EmployeeServiceShareBasedCompensationAggregateDisclosuresAbstract_48BD21FE0E5B4592FE9E845A01B6E457" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingNumber_39705C928846A8DDA8CD845A01B7D57D" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://liquidityservices.com/role/EquityTransactionsTables" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StockholdersEquityNoteAbstract" xlink:label="loc_us-gaap_StockholdersEquityNoteAbstract_7B90774987E6E303D521F3F8861809FD" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfShareBasedCompensationStockOptionsActivityTableTextBlock" xlink:label="loc_us-gaap_ScheduleOfShareBasedCompensationStockOptionsActivityTableTextBlock_108BBBA3B79E05614419F3F886193462" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StockholdersEquityNoteAbstract_7B90774987E6E303D521F3F8861809FD" xlink:to="loc_us-gaap_ScheduleOfShareBasedCompensationStockOptionsActivityTableTextBlock_108BBBA3B79E05614419F3F886193462" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeTextBlock" xlink:label="loc_us-gaap_ScheduleOfShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeTextBlock_55955587F899AFF21732F3F88619667A" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StockholdersEquityNoteAbstract_7B90774987E6E303D521F3F8861809FD" xlink:to="loc_us-gaap_ScheduleOfShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeTextBlock_55955587F899AFF21732F3F88619667A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfShareBasedPaymentAwardStockOptionsValuationAssumptionsTableTextBlock" xlink:label="loc_us-gaap_ScheduleOfShareBasedPaymentAwardStockOptionsValuationAssumptionsTableTextBlock_54E246EECED9FEF96387F3F8861A12E3" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StockholdersEquityNoteAbstract_7B90774987E6E303D521F3F8861809FD" xlink:to="loc_us-gaap_ScheduleOfShareBasedPaymentAwardStockOptionsValuationAssumptionsTableTextBlock_54E246EECED9FEF96387F3F8861A12E3" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfNonvestedShareActivityTableTextBlock" xlink:label="loc_us-gaap_ScheduleOfNonvestedShareActivityTableTextBlock_0D17B066D00B9A821113F3F8861A93B3" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StockholdersEquityNoteAbstract_7B90774987E6E303D521F3F8861809FD" xlink:to="loc_us-gaap_ScheduleOfNonvestedShareActivityTableTextBlock_0D17B066D00B9A821113F3F8861A93B3" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://liquidityservices.com/role/FairValueMeasurement" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FairValueDisclosuresAbstract" xlink:label="loc_us-gaap_FairValueDisclosuresAbstract_6D73B4E8AA43088177DC86E5D5F1DBA5" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FairValueDisclosuresTextBlock" xlink:label="loc_us-gaap_FairValueDisclosuresTextBlock_17B5E21A9B1215A7ADC586E5D5F221FD" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueDisclosuresAbstract_6D73B4E8AA43088177DC86E5D5F1DBA5" xlink:to="loc_us-gaap_FairValueDisclosuresTextBlock_17B5E21A9B1215A7ADC586E5D5F221FD" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://liquidityservices.com/role/FairValueMeasurementChangesInLevel3AssetsDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FairValueDisclosuresAbstract" xlink:label="loc_us-gaap_FairValueDisclosuresAbstract_D53A110A2319C43017BE7471FB6CC1D3" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable" xlink:label="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_43BCF551B6A79F21F2957471FB6D6BC1" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueDisclosuresAbstract_D53A110A2319C43017BE7471FB6CC1D3" xlink:to="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_43BCF551B6A79F21F2957471FB6D6BC1" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FairValueByMeasurementFrequencyAxis" xlink:label="loc_us-gaap_FairValueByMeasurementFrequencyAxis_B1A33D3ED4CD10FD2C4F7471FB6E8476" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_43BCF551B6A79F21F2957471FB6D6BC1" xlink:to="loc_us-gaap_FairValueByMeasurementFrequencyAxis_B1A33D3ED4CD10FD2C4F7471FB6E8476" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FairValueMeasurementFrequencyDomain" xlink:label="loc_us-gaap_FairValueMeasurementFrequencyDomain_85817ECA8EAE6C664D557471FB6E72CD" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueByMeasurementFrequencyAxis_B1A33D3ED4CD10FD2C4F7471FB6E8476" xlink:to="loc_us-gaap_FairValueMeasurementFrequencyDomain_85817ECA8EAE6C664D557471FB6E72CD" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FairValueMeasurementsRecurringMember" xlink:label="loc_us-gaap_FairValueMeasurementsRecurringMember_93886174A5D20A466D6C7471FB6E15F7" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueMeasurementFrequencyDomain_85817ECA8EAE6C664D557471FB6E72CD" xlink:to="loc_us-gaap_FairValueMeasurementsRecurringMember_93886174A5D20A466D6C7471FB6E15F7" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FairValueByFairValueHierarchyLevelAxis" xlink:label="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_7BF9181AD434C1BB34167471FB6F2382" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_43BCF551B6A79F21F2957471FB6D6BC1" xlink:to="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_7BF9181AD434C1BB34167471FB6F2382" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FairValueMeasurementsFairValueHierarchyDomain" xlink:label="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_34AD6C607FD2493F09787471FB6F4194" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_7BF9181AD434C1BB34167471FB6F2382" xlink:to="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_34AD6C607FD2493F09787471FB6F4194" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FairValueInputsLevel3Member" xlink:label="loc_us-gaap_FairValueInputsLevel3Member_985A0471EDD8EAF8EEDF7471FB70818C" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_34AD6C607FD2493F09787471FB6F4194" xlink:to="loc_us-gaap_FairValueInputsLevel3Member_985A0471EDD8EAF8EEDF7471FB70818C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems" xlink:label="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_773267161EEA98F85F3D7471FB70BDAE" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_43BCF551B6A79F21F2957471FB6D6BC1" xlink:to="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_773267161EEA98F85F3D7471FB70BDAE" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationCalculationRollForward" xlink:label="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationCalculationRollForward_62E662A7BCC419EFF4737471FB713208" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_773267161EEA98F85F3D7471FB70BDAE" xlink:to="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationCalculationRollForward_62E662A7BCC419EFF4737471FB713208" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue" xlink:label="loc_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue_276344407554F36914397471FB71EBB6" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/periodStartLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationCalculationRollForward_62E662A7BCC419EFF4737471FB713208" xlink:to="loc_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue_276344407554F36914397471FB71EBB6" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchases" xlink:label="loc_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchases_23BCDF7DB9CAD71F03687471FB715FE6" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationCalculationRollForward_62E662A7BCC419EFF4737471FB713208" xlink:to="loc_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchases_23BCDF7DB9CAD71F03687471FB715FE6" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityIssues" xlink:label="loc_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityIssues_BC707BC786EB95E7BA6B7471FB71D056" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationCalculationRollForward_62E662A7BCC419EFF4737471FB713208" xlink:to="loc_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityIssues_BC707BC786EB95E7BA6B7471FB71D056" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSettlements" xlink:label="loc_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSettlements_D5F11E3A10AE4809C6847471FB72FD54" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationCalculationRollForward_62E662A7BCC419EFF4737471FB713208" xlink:to="loc_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSettlements_D5F11E3A10AE4809C6847471FB72FD54" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FairValueAssetsMeasuredOnRecurringBasisChangeInUnrealizedGainLoss" xlink:label="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisChangeInUnrealizedGainLoss_FD2E51246FE6243AC4CB7471FB7268FC" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationCalculationRollForward_62E662A7BCC419EFF4737471FB713208" xlink:to="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisChangeInUnrealizedGainLoss_FD2E51246FE6243AC4CB7471FB7268FC" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue" xlink:label="loc_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue_207F7D095B34935FCD1E7471FB7239B1" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/periodEndLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationCalculationRollForward_62E662A7BCC419EFF4737471FB713208" xlink:to="loc_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue_207F7D095B34935FCD1E7471FB7239B1" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationCalculationRollForward" xlink:label="loc_us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationCalculationRollForward_08F84D67F12CE8FE95117471FB73ABDC" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_773267161EEA98F85F3D7471FB70BDAE" xlink:to="loc_us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationCalculationRollForward_08F84D67F12CE8FE95117471FB73ABDC" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue" xlink:label="loc_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue_DE812A56BE73C2C2F2067471FB732A8C" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/periodStartLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationCalculationRollForward_08F84D67F12CE8FE95117471FB73ABDC" xlink:to="loc_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue_DE812A56BE73C2C2F2067471FB732A8C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisChangeInUnrealizedGainLoss" xlink:label="loc_us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisChangeInUnrealizedGainLoss_DFE072DD215B2F6FABC47478D40FA15D" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationCalculationRollForward_08F84D67F12CE8FE95117471FB73ABDC" xlink:to="loc_us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisChangeInUnrealizedGainLoss_DFE072DD215B2F6FABC47478D40FA15D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue" xlink:label="loc_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue_DB32D6313B8A7A6A6C517471FB73909D" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/periodEndLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationCalculationRollForward_08F84D67F12CE8FE95117471FB73ABDC" xlink:to="loc_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue_DB32D6313B8A7A6A6C517471FB73909D" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://liquidityservices.com/role/FairValueMeasurementNarrativeDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FairValueDisclosuresAbstract" xlink:label="loc_us-gaap_FairValueDisclosuresAbstract_38387F83B27E620B27D65BEE4A615B02" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable" xlink:label="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_B34A61B407C8BD05FE415BEE4A6144B4" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueDisclosuresAbstract_38387F83B27E620B27D65BEE4A615B02" xlink:to="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_B34A61B407C8BD05FE415BEE4A6144B4" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FairValueByFairValueHierarchyLevelAxis" xlink:label="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_3C6FFC82BBC92A4AAA1D5BEE4A62807B" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_B34A61B407C8BD05FE415BEE4A6144B4" xlink:to="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_3C6FFC82BBC92A4AAA1D5BEE4A62807B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FairValueMeasurementsFairValueHierarchyDomain" xlink:label="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_D94419D702998BD98CA95BEE4A6207F2" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_3C6FFC82BBC92A4AAA1D5BEE4A62807B" xlink:to="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_D94419D702998BD98CA95BEE4A6207F2" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FairValueInputsLevel3Member" xlink:label="loc_us-gaap_FairValueInputsLevel3Member_F53948957EF23BBCC3AF5BEE4A636775" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_D94419D702998BD98CA95BEE4A6207F2" xlink:to="loc_us-gaap_FairValueInputsLevel3Member_F53948957EF23BBCC3AF5BEE4A636775" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessAcquisitionAxis" xlink:label="loc_us-gaap_BusinessAcquisitionAxis_08A2E036705A1CC6E0915BEE4A63D638" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_B34A61B407C8BD05FE415BEE4A6144B4" xlink:to="loc_us-gaap_BusinessAcquisitionAxis_08A2E036705A1CC6E0915BEE4A63D638" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessAcquisitionAcquireeDomain" xlink:label="loc_us-gaap_BusinessAcquisitionAcquireeDomain_CAB03E528AA9E8D3A6205BEE4A633267" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_BusinessAcquisitionAxis_08A2E036705A1CC6E0915BEE4A63D638" xlink:to="loc_us-gaap_BusinessAcquisitionAcquireeDomain_CAB03E528AA9E8D3A6205BEE4A633267" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180930.xsd#lqdt_MachinioCorporationMember" xlink:label="loc_lqdt_MachinioCorporationMember_A9C66A43A4411125A0685BEE4A6379BE" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_BusinessAcquisitionAcquireeDomain_CAB03E528AA9E8D3A6205BEE4A633267" xlink:to="loc_lqdt_MachinioCorporationMember_A9C66A43A4411125A0685BEE4A6379BE" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RangeAxis" xlink:label="loc_us-gaap_RangeAxis_525DCE9D99E0054DB8255BEE4A64F3C7" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_B34A61B407C8BD05FE415BEE4A6144B4" xlink:to="loc_us-gaap_RangeAxis_525DCE9D99E0054DB8255BEE4A64F3C7" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RangeMember" xlink:label="loc_us-gaap_RangeMember_00E09433FFF69CD941B25BEE4A641F0A" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RangeAxis_525DCE9D99E0054DB8255BEE4A64F3C7" xlink:to="loc_us-gaap_RangeMember_00E09433FFF69CD941B25BEE4A641F0A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_MinimumMember" xlink:label="loc_us-gaap_MinimumMember_BF7FB7BD4B7816CEC6315BEE4A646AC7" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RangeMember_00E09433FFF69CD941B25BEE4A641F0A" xlink:to="loc_us-gaap_MinimumMember_BF7FB7BD4B7816CEC6315BEE4A646AC7" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_MaximumMember" xlink:label="loc_us-gaap_MaximumMember_E629049C980354A1611B5BEE4A65A1E2" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RangeMember_00E09433FFF69CD941B25BEE4A641F0A" xlink:to="loc_us-gaap_MaximumMember_E629049C980354A1611B5BEE4A65A1E2" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems" xlink:label="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_1F4AD8DC2D0E1E46DAE55BEE4A65C569" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_B34A61B407C8BD05FE415BEE4A6144B4" xlink:to="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_1F4AD8DC2D0E1E46DAE55BEE4A65C569" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessCombinationContingentConsiderationLiability" xlink:label="loc_us-gaap_BusinessCombinationContingentConsiderationLiability_954413324D58CDC963AC5BEE4A65B8C3" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_1F4AD8DC2D0E1E46DAE55BEE4A65C569" xlink:to="loc_us-gaap_BusinessCombinationContingentConsiderationLiability_954413324D58CDC963AC5BEE4A65B8C3" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CertificatesOfDepositAtCarryingValue" xlink:label="loc_us-gaap_CertificatesOfDepositAtCarryingValue_840A0155D3A65E0B3EF85BEE4A66A094" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_1F4AD8DC2D0E1E46DAE55BEE4A65C569" xlink:to="loc_us-gaap_CertificatesOfDepositAtCarryingValue_840A0155D3A65E0B3EF85BEE4A66A094" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180930.xsd#lqdt_ShortTermInvestmentsInterestRate" xlink:label="loc_lqdt_ShortTermInvestmentsInterestRate_9B5E6898AEF5EAA347575BEE4A66334F" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_1F4AD8DC2D0E1E46DAE55BEE4A65C569" xlink:to="loc_lqdt_ShortTermInvestmentsInterestRate_9B5E6898AEF5EAA347575BEE4A66334F" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://liquidityservices.com/role/FairValueMeasurementTables" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FairValueDisclosuresAbstract" xlink:label="loc_us-gaap_FairValueDisclosuresAbstract_0D7B3110D134183163090962C808AAAD" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationTextBlock" xlink:label="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationTextBlock_1F77C4F80BA3324319080962C8084E1A" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueDisclosuresAbstract_0D7B3110D134183163090962C808AAAD" xlink:to="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationTextBlock_1F77C4F80BA3324319080962C8084E1A" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://liquidityservices.com/role/Goodwill" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract" xlink:label="loc_us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract_10EB47779F1FDB1B966186E5D87FCC49" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_GoodwillDisclosureTextBlock" xlink:label="loc_us-gaap_GoodwillDisclosureTextBlock_B1483E397024CEA6C27B86E5D87F0BB6" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract_10EB47779F1FDB1B966186E5D87FCC49" xlink:to="loc_us-gaap_GoodwillDisclosureTextBlock_B1483E397024CEA6C27B86E5D87F0BB6" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://liquidityservices.com/role/GoodwillNarrativeDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract" xlink:label="loc_us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract_C0FD135AF61F26086F92845A02C68ECF" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_NumberOfReportingUnits" xlink:label="loc_us-gaap_NumberOfReportingUnits_AEA5745ECCE01DA70948845A02C66A98" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract_C0FD135AF61F26086F92845A02C68ECF" xlink:to="loc_us-gaap_NumberOfReportingUnits_AEA5745ECCE01DA70948845A02C66A98" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_GoodwillImpairmentLoss" xlink:label="loc_us-gaap_GoodwillImpairmentLoss_BFBAD255C911A8281388845A02C6961C" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract_C0FD135AF61F26086F92845A02C68ECF" xlink:to="loc_us-gaap_GoodwillImpairmentLoss_BFBAD255C911A8281388845A02C6961C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_GoodwillImpairedAccumulatedImpairmentLoss" xlink:label="loc_us-gaap_GoodwillImpairedAccumulatedImpairmentLoss_B7CA767D1BF3C719A28E845A02C6116C" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract_C0FD135AF61F26086F92845A02C68ECF" xlink:to="loc_us-gaap_GoodwillImpairedAccumulatedImpairmentLoss_B7CA767D1BF3C719A28E845A02C6116C" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://liquidityservices.com/role/GoodwillScheduleOfGoodwillDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract" xlink:label="loc_us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract_62A426254669B16898D37EE943B8CB73" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfGoodwillTable" xlink:label="loc_us-gaap_ScheduleOfGoodwillTable_C7521EC0BE7F183060807EE943B89F84" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract_62A426254669B16898D37EE943B8CB73" xlink:to="loc_us-gaap_ScheduleOfGoodwillTable_C7521EC0BE7F183060807EE943B89F84" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StatementBusinessSegmentsAxis" xlink:label="loc_us-gaap_StatementBusinessSegmentsAxis_D55E89CC752585909D5D7EE943B8515B" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfGoodwillTable_C7521EC0BE7F183060807EE943B89F84" xlink:to="loc_us-gaap_StatementBusinessSegmentsAxis_D55E89CC752585909D5D7EE943B8515B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SegmentDomain" xlink:label="loc_us-gaap_SegmentDomain_D3A05D569CA8F427A8447EE943B8BA3F" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementBusinessSegmentsAxis_D55E89CC752585909D5D7EE943B8515B" xlink:to="loc_us-gaap_SegmentDomain_D3A05D569CA8F427A8447EE943B8BA3F" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180930.xsd#lqdt_RSCGMember" xlink:label="loc_lqdt_RSCGMember_7D627F52900626A9A6257EE943B9BFD6" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentDomain_D3A05D569CA8F427A8447EE943B8BA3F" xlink:to="loc_lqdt_RSCGMember_7D627F52900626A9A6257EE943B9BFD6" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180930.xsd#lqdt_CAGMember" xlink:label="loc_lqdt_CAGMember_CCFC649381CB30A323F57EE943B94A88" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentDomain_D3A05D569CA8F427A8447EE943B8BA3F" xlink:to="loc_lqdt_CAGMember_CCFC649381CB30A323F57EE943B94A88" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180930.xsd#lqdt_GovDealsMember" xlink:label="loc_lqdt_GovDealsMember_11FB7ED80E7E36F506D17EE943B96798" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentDomain_D3A05D569CA8F427A8447EE943B8BA3F" xlink:to="loc_lqdt_GovDealsMember_11FB7ED80E7E36F506D17EE943B96798" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180930.xsd#lqdt_MachinioCorporationMember" xlink:label="loc_lqdt_MachinioCorporationMember_1B4D9D2260A7F49014487EE943BABD89" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentDomain_D3A05D569CA8F427A8447EE943B8BA3F" xlink:to="loc_lqdt_MachinioCorporationMember_1B4D9D2260A7F49014487EE943BABD89" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_GoodwillLineItems" xlink:label="loc_us-gaap_GoodwillLineItems_6E4B5A434353E0564DFA7EE943BAB3B1" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfGoodwillTable_C7521EC0BE7F183060807EE943B89F84" xlink:to="loc_us-gaap_GoodwillLineItems_6E4B5A434353E0564DFA7EE943BAB3B1" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_GoodwillRollForward" xlink:label="loc_us-gaap_GoodwillRollForward_A8166486CC63E10F73877EE943BA1BD9" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_GoodwillLineItems_6E4B5A434353E0564DFA7EE943BAB3B1" xlink:to="loc_us-gaap_GoodwillRollForward_A8166486CC63E10F73877EE943BA1BD9" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_Goodwill" xlink:label="loc_us-gaap_Goodwill_4C681EC35E0C2CA587CA7EE943BAABCA" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/periodStartLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_GoodwillRollForward_A8166486CC63E10F73877EE943BA1BD9" xlink:to="loc_us-gaap_Goodwill_4C681EC35E0C2CA587CA7EE943BAABCA" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_GoodwillTransfers" xlink:label="loc_us-gaap_GoodwillTransfers_FCD8650FC6D8C6EF9C4A7EE943BB68B2" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_GoodwillRollForward_A8166486CC63E10F73877EE943BA1BD9" xlink:to="loc_us-gaap_GoodwillTransfers_FCD8650FC6D8C6EF9C4A7EE943BB68B2" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_GoodwillImpairmentLoss" xlink:label="loc_us-gaap_GoodwillImpairmentLoss_1564FB551AE759D5C0AC7EE943BB18CB" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" priority="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_GoodwillRollForward_A8166486CC63E10F73877EE943BA1BD9" xlink:to="loc_us-gaap_GoodwillImpairmentLoss_1564FB551AE759D5C0AC7EE943BB18CB" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_GoodwillForeignCurrencyTranslationGainLoss" xlink:label="loc_us-gaap_GoodwillForeignCurrencyTranslationGainLoss_817C7C94E6BDE75CE5617EE943BB5FB5" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_GoodwillRollForward_A8166486CC63E10F73877EE943BA1BD9" xlink:to="loc_us-gaap_GoodwillForeignCurrencyTranslationGainLoss_817C7C94E6BDE75CE5617EE943BB5FB5" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_GoodwillAcquiredDuringPeriod" xlink:label="loc_us-gaap_GoodwillAcquiredDuringPeriod_49FF6B245E3ABD440B257EE943BB19C8" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_GoodwillRollForward_A8166486CC63E10F73877EE943BA1BD9" xlink:to="loc_us-gaap_GoodwillAcquiredDuringPeriod_49FF6B245E3ABD440B257EE943BB19C8" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_Goodwill" xlink:label="loc_us-gaap_Goodwill_3A3823D80DFA243C275B7EE943BC9E5E" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/periodEndLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_GoodwillRollForward_A8166486CC63E10F73877EE943BA1BD9" xlink:to="loc_us-gaap_Goodwill_3A3823D80DFA243C275B7EE943BC9E5E" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://liquidityservices.com/role/GoodwillTables" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract" xlink:label="loc_us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract_11F8832CD77F36B8B09586E5D6CA72C7" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfGoodwillTextBlock" xlink:label="loc_us-gaap_ScheduleOfGoodwillTextBlock_8201F42A86575263A4EE86E5D6CA4618" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract_11F8832CD77F36B8B09586E5D6CA72C7" xlink:to="loc_us-gaap_ScheduleOfGoodwillTextBlock_8201F42A86575263A4EE86E5D6CA4618" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://liquidityservices.com/role/Guarantees" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_GuaranteesAbstract" xlink:label="loc_us-gaap_GuaranteesAbstract_B15B83F8E64B178FA8C486E5D8AFD0F6" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_GuaranteesTextBlock" xlink:label="loc_us-gaap_GuaranteesTextBlock_6D4E7F08ADA8C8F5A4B486E5D8B0A3B7" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_GuaranteesAbstract_B15B83F8E64B178FA8C486E5D8AFD0F6" xlink:to="loc_us-gaap_GuaranteesTextBlock_6D4E7F08ADA8C8F5A4B486E5D8B0A3B7" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://liquidityservices.com/role/GuaranteesDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_GuaranteesAbstract" xlink:label="loc_us-gaap_GuaranteesAbstract_A8F2E8B6925AD2AF484D86E5D596460F" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_GuaranteeObligationsCurrentCarryingValue" xlink:label="loc_us-gaap_GuaranteeObligationsCurrentCarryingValue_F8D78C8573935DA616A586E5D597C821" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_GuaranteesAbstract_A8F2E8B6925AD2AF484D86E5D596460F" xlink:to="loc_us-gaap_GuaranteeObligationsCurrentCarryingValue_F8D78C8573935DA616A586E5D597C821" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://liquidityservices.com/role/IncomeTaxes" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeTaxDisclosureAbstract" xlink:label="loc_us-gaap_IncomeTaxDisclosureAbstract_77D0F1EDB9FCF018B00386E5D5FB57B1" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeTaxDisclosureTextBlock" xlink:label="loc_us-gaap_IncomeTaxDisclosureTextBlock_111CCA1D18BDCBDEFD8586E5D5FB569D" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_77D0F1EDB9FCF018B00386E5D5FB57B1" xlink:to="loc_us-gaap_IncomeTaxDisclosureTextBlock_111CCA1D18BDCBDEFD8586E5D5FB569D" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://liquidityservices.com/role/IncomeTaxesCarryforwardsDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeTaxDisclosureAbstract" xlink:label="loc_us-gaap_IncomeTaxDisclosureAbstract_8F7BECD537ED1EA4A21B845A022237D4" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OperatingLossCarryforwardsTable" xlink:label="loc_us-gaap_OperatingLossCarryforwardsTable_C6456E07ED6AD116AD9F845A022229F1" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_8F7BECD537ED1EA4A21B845A022237D4" xlink:to="loc_us-gaap_OperatingLossCarryforwardsTable_C6456E07ED6AD116AD9F845A022229F1" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessAcquisitionAxis" xlink:label="loc_us-gaap_BusinessAcquisitionAxis_D895D9064D598FD7C6D2845A0222F87C" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OperatingLossCarryforwardsTable_C6456E07ED6AD116AD9F845A022229F1" xlink:to="loc_us-gaap_BusinessAcquisitionAxis_D895D9064D598FD7C6D2845A0222F87C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessAcquisitionAcquireeDomain" xlink:label="loc_us-gaap_BusinessAcquisitionAcquireeDomain_18FB28CA45069C01BD79845A022386CF" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_BusinessAcquisitionAxis_D895D9064D598FD7C6D2845A0222F87C" xlink:to="loc_us-gaap_BusinessAcquisitionAcquireeDomain_18FB28CA45069C01BD79845A022386CF" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180930.xsd#lqdt_MachinioCorporationMember" xlink:label="loc_lqdt_MachinioCorporationMember_EB4ACA20F83EE564E8A8845A0223B882" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_BusinessAcquisitionAcquireeDomain_18FB28CA45069C01BD79845A022386CF" xlink:to="loc_lqdt_MachinioCorporationMember_EB4ACA20F83EE564E8A8845A0223B882" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ValuationAllowanceByDeferredTaxAssetAxis" xlink:label="loc_us-gaap_ValuationAllowanceByDeferredTaxAssetAxis_3BE4CFF68589FB90C2FF845A02239252" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OperatingLossCarryforwardsTable_C6456E07ED6AD116AD9F845A022229F1" xlink:to="loc_us-gaap_ValuationAllowanceByDeferredTaxAssetAxis_3BE4CFF68589FB90C2FF845A02239252" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredTaxAssetDomain" xlink:label="loc_us-gaap_DeferredTaxAssetDomain_A99D3F0FFE08C233ABCD845A0224C0A4" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ValuationAllowanceByDeferredTaxAssetAxis_3BE4CFF68589FB90C2FF845A02239252" xlink:to="loc_us-gaap_DeferredTaxAssetDomain_A99D3F0FFE08C233ABCD845A0224C0A4" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180930.xsd#lqdt_DeferredTaxAssetRelatedToChangeInTaxRateMember" xlink:label="loc_lqdt_DeferredTaxAssetRelatedToChangeInTaxRateMember_E4B6571ED98A816B816E845A0224B9E2" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DeferredTaxAssetDomain_A99D3F0FFE08C233ABCD845A0224C0A4" xlink:to="loc_lqdt_DeferredTaxAssetRelatedToChangeInTaxRateMember_E4B6571ED98A816B816E845A0224B9E2" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180930.xsd#lqdt_DeferredTaxAssetRelatedToAlternativeMinimumTaxCreditAndOtherDeferredTaxAssetsMember" xlink:label="loc_lqdt_DeferredTaxAssetRelatedToAlternativeMinimumTaxCreditAndOtherDeferredTaxAssetsMember_F8771E8C12E6658D9B84845A022410CD" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DeferredTaxAssetDomain_A99D3F0FFE08C233ABCD845A0224C0A4" xlink:to="loc_lqdt_DeferredTaxAssetRelatedToAlternativeMinimumTaxCreditAndOtherDeferredTaxAssetsMember_F8771E8C12E6658D9B84845A022410CD" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180930.xsd#lqdt_DeferredTaxAssetRelatedToBusinessAcquisitionMember" xlink:label="loc_lqdt_DeferredTaxAssetRelatedToBusinessAcquisitionMember_C393A31D3BB46E9C586A845A022401E3" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DeferredTaxAssetDomain_A99D3F0FFE08C233ABCD845A0224C0A4" xlink:to="loc_lqdt_DeferredTaxAssetRelatedToBusinessAcquisitionMember_C393A31D3BB46E9C586A845A022401E3" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180930.xsd#lqdt_DeferredTaxAssetRelatedToNetOperatingLossCarryforwardMember" xlink:label="loc_lqdt_DeferredTaxAssetRelatedToNetOperatingLossCarryforwardMember_C78EAB8900D3461B73B4845A022561C9" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DeferredTaxAssetDomain_A99D3F0FFE08C233ABCD845A0224C0A4" xlink:to="loc_lqdt_DeferredTaxAssetRelatedToNetOperatingLossCarryforwardMember_C78EAB8900D3461B73B4845A022561C9" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeTaxAuthorityAxis" xlink:label="loc_us-gaap_IncomeTaxAuthorityAxis_57717A7E3873CDF1326B845A0225A0B4" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OperatingLossCarryforwardsTable_C6456E07ED6AD116AD9F845A022229F1" xlink:to="loc_us-gaap_IncomeTaxAuthorityAxis_57717A7E3873CDF1326B845A0225A0B4" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeTaxAuthorityDomain" xlink:label="loc_us-gaap_IncomeTaxAuthorityDomain_141897C8BEDF1A0EDDA7845A02252DE1" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxAuthorityAxis_57717A7E3873CDF1326B845A0225A0B4" xlink:to="loc_us-gaap_IncomeTaxAuthorityDomain_141897C8BEDF1A0EDDA7845A02252DE1" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ForeignCountryMember" xlink:label="loc_us-gaap_ForeignCountryMember_2374A345166C9CF041AD845A02264D47" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxAuthorityDomain_141897C8BEDF1A0EDDA7845A02252DE1" xlink:to="loc_us-gaap_ForeignCountryMember_2374A345166C9CF041AD845A02264D47" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OperatingLossCarryforwardsLineItems" xlink:label="loc_us-gaap_OperatingLossCarryforwardsLineItems_50489E9B2DF896F35BCB845A0226579A" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OperatingLossCarryforwardsTable_C6456E07ED6AD116AD9F845A022229F1" xlink:to="loc_us-gaap_OperatingLossCarryforwardsLineItems_50489E9B2DF896F35BCB845A0226579A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredTaxAssetsOperatingLossCarryforwards" xlink:label="loc_us-gaap_DeferredTaxAssetsOperatingLossCarryforwards_E4BF1FE626D4A901EEDF845A022683C1" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OperatingLossCarryforwardsLineItems_50489E9B2DF896F35BCB845A0226579A" xlink:to="loc_us-gaap_DeferredTaxAssetsOperatingLossCarryforwards_E4BF1FE626D4A901EEDF845A022683C1" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredTaxAssetsOperatingLossCarryforwardsForeign" xlink:label="loc_us-gaap_DeferredTaxAssetsOperatingLossCarryforwardsForeign_1E1E7B3D82BAABC21268845A0226216B" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" priority="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OperatingLossCarryforwardsLineItems_50489E9B2DF896F35BCB845A0226579A" xlink:to="loc_us-gaap_DeferredTaxAssetsOperatingLossCarryforwardsForeign_1E1E7B3D82BAABC21268845A0226216B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredTaxAssetsOperatingLossCarryforwardsSubjectToExpiration" xlink:label="loc_us-gaap_DeferredTaxAssetsOperatingLossCarryforwardsSubjectToExpiration_C72C0B22BBF4D980E547845A0227A780" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OperatingLossCarryforwardsLineItems_50489E9B2DF896F35BCB845A0226579A" xlink:to="loc_us-gaap_DeferredTaxAssetsOperatingLossCarryforwardsSubjectToExpiration_C72C0B22BBF4D980E547845A0227A780" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate" xlink:label="loc_us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate_37AEC315D0A57C0786BF845A0227FEB1" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OperatingLossCarryforwardsLineItems_50489E9B2DF896F35BCB845A0226579A" xlink:to="loc_us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate_37AEC315D0A57C0786BF845A0227FEB1" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180930.xsd#lqdt_TaxCutsAndJobsActOfTwoThousandSeventeenIncompleteAccountingProvisionalIncomeTaxExpenseBenefitDeferredTaxAssetsValuationAllowance" xlink:label="loc_lqdt_TaxCutsAndJobsActOfTwoThousandSeventeenIncompleteAccountingProvisionalIncomeTaxExpenseBenefitDeferredTaxAssetsValuationAllowance_2D2230851BB2B28E9C3A845A0227EEE1" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OperatingLossCarryforwardsLineItems_50489E9B2DF896F35BCB845A0226579A" xlink:to="loc_lqdt_TaxCutsAndJobsActOfTwoThousandSeventeenIncompleteAccountingProvisionalIncomeTaxExpenseBenefitDeferredTaxAssetsValuationAllowance_2D2230851BB2B28E9C3A845A0227EEE1" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ValuationAllowanceDeferredTaxAssetChangeInAmount" xlink:label="loc_us-gaap_ValuationAllowanceDeferredTaxAssetChangeInAmount_03AF0F956F7DB3C0BD63845A02278851" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OperatingLossCarryforwardsLineItems_50489E9B2DF896F35BCB845A0226579A" xlink:to="loc_us-gaap_ValuationAllowanceDeferredTaxAssetChangeInAmount_03AF0F956F7DB3C0BD63845A02278851" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessAcquisitionPercentageOfVotingInterestsAcquired" xlink:label="loc_us-gaap_BusinessAcquisitionPercentageOfVotingInterestsAcquired_4D62602A79BD15F691EF845A022721D5" xlink:type="locator" />
    <link:presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OperatingLossCarryforwardsLineItems_50489E9B2DF896F35BCB845A0226579A" xlink:to="loc_us-gaap_BusinessAcquisitionPercentageOfVotingInterestsAcquired_4D62602A79BD15F691EF845A022721D5" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessCombinationConsiderationTransferred1" xlink:label="loc_us-gaap_BusinessCombinationConsiderationTransferred1_B49B9D4078D594151ED9845A0228016D" xlink:type="locator" />
    <link:presentationArc order="8" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OperatingLossCarryforwardsLineItems_50489E9B2DF896F35BCB845A0226579A" xlink:to="loc_us-gaap_BusinessCombinationConsiderationTransferred1_B49B9D4078D594151ED9845A0228016D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedDeferredTaxLiabilities" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedDeferredTaxLiabilities_3FF3DC1C974A6D73D40F845A0228407B" xlink:type="locator" />
    <link:presentationArc order="9" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OperatingLossCarryforwardsLineItems_50489E9B2DF896F35BCB845A0226579A" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedDeferredTaxLiabilities_3FF3DC1C974A6D73D40F845A0228407B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OperatingLossCarryforwards" xlink:label="loc_us-gaap_OperatingLossCarryforwards_66C4E05CC70C16EB61C4845A02288701" xlink:type="locator" />
    <link:presentationArc order="10" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OperatingLossCarryforwardsLineItems_50489E9B2DF896F35BCB845A0226579A" xlink:to="loc_us-gaap_OperatingLossCarryforwards_66C4E05CC70C16EB61C4845A02288701" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredTaxAssetsValuationAllowance" xlink:label="loc_us-gaap_DeferredTaxAssetsValuationAllowance_D13FDCDF27FE7697FE98845A0228B956" xlink:type="locator" />
    <link:presentationArc order="11" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OperatingLossCarryforwardsLineItems_50489E9B2DF896F35BCB845A0226579A" xlink:to="loc_us-gaap_DeferredTaxAssetsValuationAllowance_D13FDCDF27FE7697FE98845A0228B956" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_UndistributedEarningsOfForeignSubsidiaries" xlink:label="loc_us-gaap_UndistributedEarningsOfForeignSubsidiaries_CA4C727C295DA3035FF7845A0228C07C" xlink:type="locator" />
    <link:presentationArc order="12" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OperatingLossCarryforwardsLineItems_50489E9B2DF896F35BCB845A0226579A" xlink:to="loc_us-gaap_UndistributedEarningsOfForeignSubsidiaries_CA4C727C295DA3035FF7845A0228C07C" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180930.xsd#lqdt_CashAndCashEquivalentsOfForeignSubsidiariesTaxableUponRepatriation" xlink:label="loc_lqdt_CashAndCashEquivalentsOfForeignSubsidiariesTaxableUponRepatriation_572C9DA9E2F6768AEB73845A0229272D" xlink:type="locator" />
    <link:presentationArc order="13" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OperatingLossCarryforwardsLineItems_50489E9B2DF896F35BCB845A0226579A" xlink:to="loc_lqdt_CashAndCashEquivalentsOfForeignSubsidiariesTaxableUponRepatriation_572C9DA9E2F6768AEB73845A0229272D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ReconciliationOfUnrecognizedTaxBenefitsExcludingAmountsPertainingToExaminedTaxReturnsRollForward" xlink:label="loc_us-gaap_ReconciliationOfUnrecognizedTaxBenefitsExcludingAmountsPertainingToExaminedTaxReturnsRollForward_672273031BC27708E84E845A0229EB01" xlink:type="locator" />
    <link:presentationArc order="14" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OperatingLossCarryforwardsLineItems_50489E9B2DF896F35BCB845A0226579A" xlink:to="loc_us-gaap_ReconciliationOfUnrecognizedTaxBenefitsExcludingAmountsPertainingToExaminedTaxReturnsRollForward_672273031BC27708E84E845A0229EB01" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_UnrecognizedTaxBenefits" xlink:label="loc_us-gaap_UnrecognizedTaxBenefits_D9B583C4A5B35E6A29E4845A02291018" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/periodStartLabel" priority="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ReconciliationOfUnrecognizedTaxBenefitsExcludingAmountsPertainingToExaminedTaxReturnsRollForward_672273031BC27708E84E845A0229EB01" xlink:to="loc_us-gaap_UnrecognizedTaxBenefits_D9B583C4A5B35E6A29E4845A02291018" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions" xlink:label="loc_us-gaap_UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions_62EE782004DA3EC46D7D845A0229E4BA" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ReconciliationOfUnrecognizedTaxBenefitsExcludingAmountsPertainingToExaminedTaxReturnsRollForward_672273031BC27708E84E845A0229EB01" xlink:to="loc_us-gaap_UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions_62EE782004DA3EC46D7D845A0229E4BA" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions" xlink:label="loc_us-gaap_UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions_730F291B93ABDB0BF81F845A0229ACC9" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ReconciliationOfUnrecognizedTaxBenefitsExcludingAmountsPertainingToExaminedTaxReturnsRollForward_672273031BC27708E84E845A0229EB01" xlink:to="loc_us-gaap_UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions_730F291B93ABDB0BF81F845A0229ACC9" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions" xlink:label="loc_us-gaap_UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions_35CED3C5CA80BA8971B7845A022A2143" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ReconciliationOfUnrecognizedTaxBenefitsExcludingAmountsPertainingToExaminedTaxReturnsRollForward_672273031BC27708E84E845A0229EB01" xlink:to="loc_us-gaap_UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions_35CED3C5CA80BA8971B7845A022A2143" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities" xlink:label="loc_us-gaap_UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities_1493307D4C03481C3641845A022ACF08" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ReconciliationOfUnrecognizedTaxBenefitsExcludingAmountsPertainingToExaminedTaxReturnsRollForward_672273031BC27708E84E845A0229EB01" xlink:to="loc_us-gaap_UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities_1493307D4C03481C3641845A022ACF08" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_UnrecognizedTaxBenefits" xlink:label="loc_us-gaap_UnrecognizedTaxBenefits_C3894D5A7FF756525FBE845A022AAA4B" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/periodEndLabel" priority="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ReconciliationOfUnrecognizedTaxBenefitsExcludingAmountsPertainingToExaminedTaxReturnsRollForward_672273031BC27708E84E845A0229EB01" xlink:to="loc_us-gaap_UnrecognizedTaxBenefits_C3894D5A7FF756525FBE845A022AAA4B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_UnrecognizedTaxBenefitsInterestOnIncomeTaxesExpense" xlink:label="loc_us-gaap_UnrecognizedTaxBenefitsInterestOnIncomeTaxesExpense_B4FA85051BBFE573B444845A022A551D" xlink:type="locator" />
    <link:presentationArc order="15" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OperatingLossCarryforwardsLineItems_50489E9B2DF896F35BCB845A0226579A" xlink:to="loc_us-gaap_UnrecognizedTaxBenefitsInterestOnIncomeTaxesExpense_B4FA85051BBFE573B444845A022A551D" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://liquidityservices.com/role/IncomeTaxesDeferredTaxAssetsDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeTaxDisclosureAbstract" xlink:label="loc_us-gaap_IncomeTaxDisclosureAbstract_7FDC4F5AF7525E089DDE840E09DC63B0" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredTaxAssetsNetAbstract" xlink:label="loc_us-gaap_DeferredTaxAssetsNetAbstract_C5690BA647D6BE3712BF840E09DC5C91" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_7FDC4F5AF7525E089DDE840E09DC63B0" xlink:to="loc_us-gaap_DeferredTaxAssetsNetAbstract_C5690BA647D6BE3712BF840E09DC5C91" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredTaxAssetsOperatingLossCarryforwardsForeign" xlink:label="loc_us-gaap_DeferredTaxAssetsOperatingLossCarryforwardsForeign_1383DB32434A1FB7FDC8840E09DD56DD" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DeferredTaxAssetsNetAbstract_C5690BA647D6BE3712BF840E09DC5C91" xlink:to="loc_us-gaap_DeferredTaxAssetsOperatingLossCarryforwardsForeign_1383DB32434A1FB7FDC8840E09DD56DD" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredTaxAssetsOperatingLossCarryforwardsDomestic" xlink:label="loc_us-gaap_DeferredTaxAssetsOperatingLossCarryforwardsDomestic_0EC3C52A737C87E643AC840E09DD4193" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DeferredTaxAssetsNetAbstract_C5690BA647D6BE3712BF840E09DC5C91" xlink:to="loc_us-gaap_DeferredTaxAssetsOperatingLossCarryforwardsDomestic_0EC3C52A737C87E643AC840E09DD4193" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180930.xsd#lqdt_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsCompensatedAbsencesAndEmployeeBonuses" xlink:label="loc_lqdt_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsCompensatedAbsencesAndEmployeeBonuses_2CFEAB76F780D7178241840E09DD9392" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" priority="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DeferredTaxAssetsNetAbstract_C5690BA647D6BE3712BF840E09DC5C91" xlink:to="loc_lqdt_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsCompensatedAbsencesAndEmployeeBonuses_2CFEAB76F780D7178241840E09DD9392" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180930.xsd#lqdt_DeferredTaxAssetsInventoryCapitalization" xlink:label="loc_lqdt_DeferredTaxAssetsInventoryCapitalization_E1A0003C528458B2A781840E09DDDAD1" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DeferredTaxAssetsNetAbstract_C5690BA647D6BE3712BF840E09DC5C91" xlink:to="loc_lqdt_DeferredTaxAssetsInventoryCapitalization_E1A0003C528458B2A781840E09DDDAD1" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180930.xsd#lqdt_DeferredTaxAssetsInventoryReserves" xlink:label="loc_lqdt_DeferredTaxAssetsInventoryReserves_3D9F333935CC8ACE0C72840E09DD388A" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DeferredTaxAssetsNetAbstract_C5690BA647D6BE3712BF840E09DC5C91" xlink:to="loc_lqdt_DeferredTaxAssetsInventoryReserves_3D9F333935CC8ACE0C72840E09DD388A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAllowanceForDoubtfulAccounts" xlink:label="loc_us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAllowanceForDoubtfulAccounts_9626FEEAAA2B5E2DDDF4840E09DEE750" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DeferredTaxAssetsNetAbstract_C5690BA647D6BE3712BF840E09DC5C91" xlink:to="loc_us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAllowanceForDoubtfulAccounts_9626FEEAAA2B5E2DDDF4840E09DEE750" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost" xlink:label="loc_us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost_E91C13950B0B3D246B41840E09DE8B0C" xlink:type="locator" />
    <link:presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DeferredTaxAssetsNetAbstract_C5690BA647D6BE3712BF840E09DC5C91" xlink:to="loc_us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost_E91C13950B0B3D246B41840E09DE8B0C" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180930.xsd#lqdt_DeferredTaxAssetsIntangibleAssets" xlink:label="loc_lqdt_DeferredTaxAssetsIntangibleAssets_E999BE9F18324B0EBA69840E09DE197D" xlink:type="locator" />
    <link:presentationArc order="8" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DeferredTaxAssetsNetAbstract_C5690BA647D6BE3712BF840E09DC5C91" xlink:to="loc_lqdt_DeferredTaxAssetsIntangibleAssets_E999BE9F18324B0EBA69840E09DE197D" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180930.xsd#lqdt_DeferredTaxAssetsRestructuringCosts" xlink:label="loc_lqdt_DeferredTaxAssetsRestructuringCosts_7E885A407C421B8EA847840E09DEA8E6" xlink:type="locator" />
    <link:presentationArc order="9" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DeferredTaxAssetsNetAbstract_C5690BA647D6BE3712BF840E09DC5C91" xlink:to="loc_lqdt_DeferredTaxAssetsRestructuringCosts_7E885A407C421B8EA847840E09DEA8E6" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredTaxAssetsOther" xlink:label="loc_us-gaap_DeferredTaxAssetsOther_34EF1C459BF8AF299B72840E09DEC41C" xlink:type="locator" />
    <link:presentationArc order="10" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DeferredTaxAssetsNetAbstract_C5690BA647D6BE3712BF840E09DC5C91" xlink:to="loc_us-gaap_DeferredTaxAssetsOther_34EF1C459BF8AF299B72840E09DEC41C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredTaxAssetsGross" xlink:label="loc_us-gaap_DeferredTaxAssetsGross_57C107AE3B60B519EAB8840E09DE9EF4" xlink:type="locator" />
    <link:presentationArc order="11" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DeferredTaxAssetsNetAbstract_C5690BA647D6BE3712BF840E09DC5C91" xlink:to="loc_us-gaap_DeferredTaxAssetsGross_57C107AE3B60B519EAB8840E09DE9EF4" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredTaxAssetsValuationAllowance" xlink:label="loc_us-gaap_DeferredTaxAssetsValuationAllowance_6DD37299128D511F8448840E09DFDDAC" xlink:type="locator" />
    <link:presentationArc order="12" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DeferredTaxAssetsNetAbstract_C5690BA647D6BE3712BF840E09DC5C91" xlink:to="loc_us-gaap_DeferredTaxAssetsValuationAllowance_6DD37299128D511F8448840E09DFDDAC" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredTaxAssetsNet" xlink:label="loc_us-gaap_DeferredTaxAssetsNet_D3FCEBD3E40AB64AA394840E09DF06AE" xlink:type="locator" />
    <link:presentationArc order="13" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DeferredTaxAssetsNetAbstract_C5690BA647D6BE3712BF840E09DC5C91" xlink:to="loc_us-gaap_DeferredTaxAssetsNet_D3FCEBD3E40AB64AA394840E09DF06AE" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredTaxAssetsLiabilitiesNetAbstract" xlink:label="loc_us-gaap_DeferredTaxAssetsLiabilitiesNetAbstract_5CD3C7A00C057D503402840E09DFDA69" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_7FDC4F5AF7525E089DDE840E09DC63B0" xlink:to="loc_us-gaap_DeferredTaxAssetsLiabilitiesNetAbstract_5CD3C7A00C057D503402840E09DFDA69" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets" xlink:label="loc_us-gaap_DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets_F65D27CF413B9271CE44840E09DF1238" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DeferredTaxAssetsLiabilitiesNetAbstract_5CD3C7A00C057D503402840E09DFDA69" xlink:to="loc_us-gaap_DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets_F65D27CF413B9271CE44840E09DF1238" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsGoodwill" xlink:label="loc_us-gaap_DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsGoodwill_74E4FC24A7CB0C1DCFC3840E09DF424F" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DeferredTaxAssetsLiabilitiesNetAbstract_5CD3C7A00C057D503402840E09DFDA69" xlink:to="loc_us-gaap_DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsGoodwill_74E4FC24A7CB0C1DCFC3840E09DF424F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredTaxLiabilitiesPropertyPlantAndEquipment" xlink:label="loc_us-gaap_DeferredTaxLiabilitiesPropertyPlantAndEquipment_E905704235252E145F76840E09DFCEC4" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DeferredTaxAssetsLiabilitiesNetAbstract_5CD3C7A00C057D503402840E09DFDA69" xlink:to="loc_us-gaap_DeferredTaxLiabilitiesPropertyPlantAndEquipment_E905704235252E145F76840E09DFCEC4" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredTaxLiabilitiesDeferredExpenseOtherCapitalizedCosts" xlink:label="loc_us-gaap_DeferredTaxLiabilitiesDeferredExpenseOtherCapitalizedCosts_088A560A5FB0A89A2055840E09E01A40" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DeferredTaxAssetsLiabilitiesNetAbstract_5CD3C7A00C057D503402840E09DFDA69" xlink:to="loc_us-gaap_DeferredTaxLiabilitiesDeferredExpenseOtherCapitalizedCosts_088A560A5FB0A89A2055840E09E01A40" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180930.xsd#lqdt_DeferredTaxLiabilitiesTaxDeferredExpenseCompensationAndBenefitsPensions" xlink:label="loc_lqdt_DeferredTaxLiabilitiesTaxDeferredExpenseCompensationAndBenefitsPensions_58B9E391B45608F7477D840E09E082F0" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DeferredTaxAssetsLiabilitiesNetAbstract_5CD3C7A00C057D503402840E09DFDA69" xlink:to="loc_lqdt_DeferredTaxLiabilitiesTaxDeferredExpenseCompensationAndBenefitsPensions_58B9E391B45608F7477D840E09E082F0" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredIncomeTaxLiabilities" xlink:label="loc_us-gaap_DeferredIncomeTaxLiabilities_AF19D3D9900D16609A51840E09E09967" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" priority="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DeferredTaxAssetsLiabilitiesNetAbstract_5CD3C7A00C057D503402840E09DFDA69" xlink:to="loc_us-gaap_DeferredIncomeTaxLiabilities_AF19D3D9900D16609A51840E09E09967" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredTaxLiabilities" xlink:label="loc_us-gaap_DeferredTaxLiabilities_120726F7CACDDF587F48840E09E07630" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2009/role/negatedTotalLabel" priority="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_7FDC4F5AF7525E089DDE840E09DC63B0" xlink:to="loc_us-gaap_DeferredTaxLiabilities_120726F7CACDDF587F48840E09E07630" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://liquidityservices.com/role/IncomeTaxesProvisionDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeTaxDisclosureAbstract" xlink:label="loc_us-gaap_IncomeTaxDisclosureAbstract_23B229C305E54D4C90D2F3F82E47FDED" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CurrentIncomeTaxExpenseBenefitContinuingOperationsAbstract" xlink:label="loc_us-gaap_CurrentIncomeTaxExpenseBenefitContinuingOperationsAbstract_BAB02DC7FDA53E984651F3F82E494136" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_23B229C305E54D4C90D2F3F82E47FDED" xlink:to="loc_us-gaap_CurrentIncomeTaxExpenseBenefitContinuingOperationsAbstract_BAB02DC7FDA53E984651F3F82E494136" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CurrentFederalTaxExpenseBenefit" xlink:label="loc_us-gaap_CurrentFederalTaxExpenseBenefit_A257364F14DD2E647B64F3F82E4AA46A" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CurrentIncomeTaxExpenseBenefitContinuingOperationsAbstract_BAB02DC7FDA53E984651F3F82E494136" xlink:to="loc_us-gaap_CurrentFederalTaxExpenseBenefit_A257364F14DD2E647B64F3F82E4AA46A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CurrentStateAndLocalTaxExpenseBenefit" xlink:label="loc_us-gaap_CurrentStateAndLocalTaxExpenseBenefit_3F68C807DF1C1546B017F3F82E4A565E" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CurrentIncomeTaxExpenseBenefitContinuingOperationsAbstract_BAB02DC7FDA53E984651F3F82E494136" xlink:to="loc_us-gaap_CurrentStateAndLocalTaxExpenseBenefit_3F68C807DF1C1546B017F3F82E4A565E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CurrentForeignTaxExpenseBenefit" xlink:label="loc_us-gaap_CurrentForeignTaxExpenseBenefit_D85F6E5AF237D255F05AF3F82E4AE084" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CurrentIncomeTaxExpenseBenefitContinuingOperationsAbstract_BAB02DC7FDA53E984651F3F82E494136" xlink:to="loc_us-gaap_CurrentForeignTaxExpenseBenefit_D85F6E5AF237D255F05AF3F82E4AE084" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CurrentIncomeTaxExpenseBenefit" xlink:label="loc_us-gaap_CurrentIncomeTaxExpenseBenefit_2DA01F74077C4D5D1098F3F82E4A1619" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CurrentIncomeTaxExpenseBenefitContinuingOperationsAbstract_BAB02DC7FDA53E984651F3F82E494136" xlink:to="loc_us-gaap_CurrentIncomeTaxExpenseBenefit_2DA01F74077C4D5D1098F3F82E4A1619" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredIncomeTaxExpenseBenefitContinuingOperationsAbstract" xlink:label="loc_us-gaap_DeferredIncomeTaxExpenseBenefitContinuingOperationsAbstract_88A372D053D577FB48C2F3F82E4B3CD2" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_23B229C305E54D4C90D2F3F82E47FDED" xlink:to="loc_us-gaap_DeferredIncomeTaxExpenseBenefitContinuingOperationsAbstract_88A372D053D577FB48C2F3F82E4B3CD2" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredFederalIncomeTaxExpenseBenefit" xlink:label="loc_us-gaap_DeferredFederalIncomeTaxExpenseBenefit_27E2B97B0E8E4F009921F3F82E4B03D6" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DeferredIncomeTaxExpenseBenefitContinuingOperationsAbstract_88A372D053D577FB48C2F3F82E4B3CD2" xlink:to="loc_us-gaap_DeferredFederalIncomeTaxExpenseBenefit_27E2B97B0E8E4F009921F3F82E4B03D6" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredStateAndLocalIncomeTaxExpenseBenefit" xlink:label="loc_us-gaap_DeferredStateAndLocalIncomeTaxExpenseBenefit_2F21A619394A3B38AFF3F3F82E4B98EC" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DeferredIncomeTaxExpenseBenefitContinuingOperationsAbstract_88A372D053D577FB48C2F3F82E4B3CD2" xlink:to="loc_us-gaap_DeferredStateAndLocalIncomeTaxExpenseBenefit_2F21A619394A3B38AFF3F3F82E4B98EC" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredForeignIncomeTaxExpenseBenefit" xlink:label="loc_us-gaap_DeferredForeignIncomeTaxExpenseBenefit_7EC4CBC959F7C43FEF56F3F82E4B91B7" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DeferredIncomeTaxExpenseBenefitContinuingOperationsAbstract_88A372D053D577FB48C2F3F82E4B3CD2" xlink:to="loc_us-gaap_DeferredForeignIncomeTaxExpenseBenefit_7EC4CBC959F7C43FEF56F3F82E4B91B7" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180930.xsd#lqdt_TotalDeferredIncomeTaxExpenseBenefit" xlink:label="loc_lqdt_TotalDeferredIncomeTaxExpenseBenefit_A26D31011BC6822B2B36F3F82E4B048F" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" priority="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DeferredIncomeTaxExpenseBenefitContinuingOperationsAbstract_88A372D053D577FB48C2F3F82E4B3CD2" xlink:to="loc_lqdt_TotalDeferredIncomeTaxExpenseBenefit_A26D31011BC6822B2B36F3F82E4B048F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeTaxExpenseBenefit" xlink:label="loc_us-gaap_IncomeTaxExpenseBenefit_0145E5F676BED1CC94B4F3F82E4CDC28" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" priority="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_23B229C305E54D4C90D2F3F82E47FDED" xlink:to="loc_us-gaap_IncomeTaxExpenseBenefit_0145E5F676BED1CC94B4F3F82E4CDC28" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://liquidityservices.com/role/IncomeTaxesReconciliationDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeTaxDisclosureAbstract" xlink:label="loc_us-gaap_IncomeTaxDisclosureAbstract_BA942E83BF5EC6775ECD84B85A1E3FD0" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EffectiveIncomeTaxRateContinuingOperationsTaxRateReconciliationAbstract" xlink:label="loc_us-gaap_EffectiveIncomeTaxRateContinuingOperationsTaxRateReconciliationAbstract_3DD305700CA45736E99B84B85A1ECC43" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_BA942E83BF5EC6775ECD84B85A1E3FD0" xlink:to="loc_us-gaap_EffectiveIncomeTaxRateContinuingOperationsTaxRateReconciliationAbstract_3DD305700CA45736E99B84B85A1ECC43" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate" xlink:label="loc_us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate_B40583D92D4703BF89F584B85A1E8B39" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EffectiveIncomeTaxRateContinuingOperationsTaxRateReconciliationAbstract_3DD305700CA45736E99B84B85A1ECC43" xlink:to="loc_us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate_B40583D92D4703BF89F584B85A1E8B39" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EffectiveIncomeTaxRateReconciliationNondeductibleExpense" xlink:label="loc_us-gaap_EffectiveIncomeTaxRateReconciliationNondeductibleExpense_A72EE9EC7661AD95BA1D84B85A1FA430" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EffectiveIncomeTaxRateContinuingOperationsTaxRateReconciliationAbstract_3DD305700CA45736E99B84B85A1ECC43" xlink:to="loc_us-gaap_EffectiveIncomeTaxRateReconciliationNondeductibleExpense_A72EE9EC7661AD95BA1D84B85A1FA430" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes" xlink:label="loc_us-gaap_EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes_B3976E4B105BBFD1BFAE84B85A1FEB4D" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EffectiveIncomeTaxRateContinuingOperationsTaxRateReconciliationAbstract_3DD305700CA45736E99B84B85A1ECC43" xlink:to="loc_us-gaap_EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes_B3976E4B105BBFD1BFAE84B85A1FEB4D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential" xlink:label="loc_us-gaap_EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential_49669A706B4434D01A4B84B85A1F0D7E" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EffectiveIncomeTaxRateContinuingOperationsTaxRateReconciliationAbstract_3DD305700CA45736E99B84B85A1ECC43" xlink:to="loc_us-gaap_EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential_49669A706B4434D01A4B84B85A1F0D7E" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180930.xsd#lqdt_EffectiveIncomeTaxRateReconciliationUnrecognizedTaxBenefitsPercent" xlink:label="loc_lqdt_EffectiveIncomeTaxRateReconciliationUnrecognizedTaxBenefitsPercent_91C390D9FA7A488D536984B85A1FD758" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EffectiveIncomeTaxRateContinuingOperationsTaxRateReconciliationAbstract_3DD305700CA45736E99B84B85A1ECC43" xlink:to="loc_lqdt_EffectiveIncomeTaxRateReconciliationUnrecognizedTaxBenefitsPercent_91C390D9FA7A488D536984B85A1FD758" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance" xlink:label="loc_us-gaap_EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance_A404F4C65567D308FFFD84B85A20F04A" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EffectiveIncomeTaxRateContinuingOperationsTaxRateReconciliationAbstract_3DD305700CA45736E99B84B85A1ECC43" xlink:to="loc_us-gaap_EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance_A404F4C65567D308FFFD84B85A20F04A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EffectiveIncomeTaxRateReconciliationChangeInEnactedTaxRate" xlink:label="loc_us-gaap_EffectiveIncomeTaxRateReconciliationChangeInEnactedTaxRate_B44900940B560F4FC47484B85A205F12" xlink:type="locator" />
    <link:presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EffectiveIncomeTaxRateContinuingOperationsTaxRateReconciliationAbstract_3DD305700CA45736E99B84B85A1ECC43" xlink:to="loc_us-gaap_EffectiveIncomeTaxRateReconciliationChangeInEnactedTaxRate_B44900940B560F4FC47484B85A205F12" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EffectiveIncomeTaxRateReconciliationOtherAdjustments" xlink:label="loc_us-gaap_EffectiveIncomeTaxRateReconciliationOtherAdjustments_793CED3970E533CDD80784B85A216419" xlink:type="locator" />
    <link:presentationArc order="8" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EffectiveIncomeTaxRateContinuingOperationsTaxRateReconciliationAbstract_3DD305700CA45736E99B84B85A1ECC43" xlink:to="loc_us-gaap_EffectiveIncomeTaxRateReconciliationOtherAdjustments_793CED3970E533CDD80784B85A216419" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EffectiveIncomeTaxRateContinuingOperations" xlink:label="loc_us-gaap_EffectiveIncomeTaxRateContinuingOperations_3A8D7991312D01919ECE84B85A21623F" xlink:type="locator" />
    <link:presentationArc order="9" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EffectiveIncomeTaxRateContinuingOperationsTaxRateReconciliationAbstract_3DD305700CA45736E99B84B85A1ECC43" xlink:to="loc_us-gaap_EffectiveIncomeTaxRateContinuingOperations_3A8D7991312D01919ECE84B85A21623F" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://liquidityservices.com/role/IncomeTaxesTables" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeTaxDisclosureAbstract" xlink:label="loc_us-gaap_IncomeTaxDisclosureAbstract_343EF766C3B40447370186E5D8562877" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfComponentsOfIncomeTaxExpenseBenefitTableTextBlock" xlink:label="loc_us-gaap_ScheduleOfComponentsOfIncomeTaxExpenseBenefitTableTextBlock_92207AABC6024EBD6C8286E5D857743B" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_343EF766C3B40447370186E5D8562877" xlink:to="loc_us-gaap_ScheduleOfComponentsOfIncomeTaxExpenseBenefitTableTextBlock_92207AABC6024EBD6C8286E5D857743B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfDeferredTaxAssetsAndLiabilitiesTableTextBlock" xlink:label="loc_us-gaap_ScheduleOfDeferredTaxAssetsAndLiabilitiesTableTextBlock_3ADB6E0E0A6DE633E8A086E5D85705CE" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_343EF766C3B40447370186E5D8562877" xlink:to="loc_us-gaap_ScheduleOfDeferredTaxAssetsAndLiabilitiesTableTextBlock_3ADB6E0E0A6DE633E8A086E5D85705CE" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfEffectiveIncomeTaxRateReconciliationTableTextBlock" xlink:label="loc_us-gaap_ScheduleOfEffectiveIncomeTaxRateReconciliationTableTextBlock_A977DB7EB76A9E99CD5686E5D8571DD1" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_343EF766C3B40447370186E5D8562877" xlink:to="loc_us-gaap_ScheduleOfEffectiveIncomeTaxRateReconciliationTableTextBlock_A977DB7EB76A9E99CD5686E5D8571DD1" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfUnrecognizedTaxBenefitsRollForwardTableTextBlock" xlink:label="loc_us-gaap_ScheduleOfUnrecognizedTaxBenefitsRollForwardTableTextBlock_E332E65528FB090B8C3586E5D857AB22" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_343EF766C3B40447370186E5D8562877" xlink:to="loc_us-gaap_ScheduleOfUnrecognizedTaxBenefitsRollForwardTableTextBlock_E332E65528FB090B8C3586E5D857AB22" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://liquidityservices.com/role/IntangibleAssets" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsNetAbstract" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsNetAbstract_579B53DFFF42138E23C386E5D7A63387" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IntangibleAssetsDisclosureTextBlock" xlink:label="loc_us-gaap_IntangibleAssetsDisclosureTextBlock_349BD000016909C3C90986E5D7A7963A" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsNetAbstract_579B53DFFF42138E23C386E5D7A63387" xlink:to="loc_us-gaap_IntangibleAssetsDisclosureTextBlock_349BD000016909C3C90986E5D7A7963A" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://liquidityservices.com/role/IntangibleAssetsFutureAmortizationDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsNetAbstract" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsNetAbstract_E42156D9EB917BEA209384F8D43E6D96" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsFutureAmortizationExpenseAbstract" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsFutureAmortizationExpenseAbstract_2636B766CC07C0ACE55684F8D44175FC" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsNetAbstract_E42156D9EB917BEA209384F8D43E6D96" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsFutureAmortizationExpenseAbstract_2636B766CC07C0ACE55684F8D44175FC" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths_2729903339AD2FCD97DB84F8D4439485" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsFutureAmortizationExpenseAbstract_2636B766CC07C0ACE55684F8D44175FC" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths_2729903339AD2FCD97DB84F8D4439485" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo_5A0AFD671801EF5D654184F8D44483A0" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsFutureAmortizationExpenseAbstract_2636B766CC07C0ACE55684F8D44175FC" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo_5A0AFD671801EF5D654184F8D44483A0" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree_2BACA1DBEA2DD495EAC584F8D44479A3" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsFutureAmortizationExpenseAbstract_2636B766CC07C0ACE55684F8D44175FC" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree_2BACA1DBEA2DD495EAC584F8D44479A3" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour_6E650CD7EA553E3C74A484F8D4446376" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsFutureAmortizationExpenseAbstract_2636B766CC07C0ACE55684F8D44175FC" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour_6E650CD7EA553E3C74A484F8D4446376" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFive" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFive_179BD05F0AAC4E005D9184FA0038E92D" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsFutureAmortizationExpenseAbstract_2636B766CC07C0ACE55684F8D44175FC" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFive_179BD05F0AAC4E005D9184FA0038E92D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive_69B8099943E76A31C21284FA004ADDD2" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsFutureAmortizationExpenseAbstract_2636B766CC07C0ACE55684F8D44175FC" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive_69B8099943E76A31C21284FA004ADDD2" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IntangibleAssetsNetExcludingGoodwill" xlink:label="loc_us-gaap_IntangibleAssetsNetExcludingGoodwill_873C4EF6634DB51A45FC84F8D44A7DF9" xlink:type="locator" />
    <link:presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsFutureAmortizationExpenseAbstract_2636B766CC07C0ACE55684F8D44175FC" xlink:to="loc_us-gaap_IntangibleAssetsNetExcludingGoodwill_873C4EF6634DB51A45FC84F8D44A7DF9" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://liquidityservices.com/role/IntangibleAssetsNarrativeDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsNetAbstract" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsNetAbstract_D4F12022B9489CBDC54E845A02A3A59C" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable" xlink:label="loc_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable_5799E342830053B76BD1845A02A31717" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsNetAbstract_D4F12022B9489CBDC54E845A02A3A59C" xlink:to="loc_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable_5799E342830053B76BD1845A02A31717" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessAcquisitionAxis" xlink:label="loc_us-gaap_BusinessAcquisitionAxis_25CCBA3EAC13ECA4B76B845A02A38C35" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable_5799E342830053B76BD1845A02A31717" xlink:to="loc_us-gaap_BusinessAcquisitionAxis_25CCBA3EAC13ECA4B76B845A02A38C35" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessAcquisitionAcquireeDomain" xlink:label="loc_us-gaap_BusinessAcquisitionAcquireeDomain_4117BCE7911EADB47FE9845A02A4E153" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_BusinessAcquisitionAxis_25CCBA3EAC13ECA4B76B845A02A38C35" xlink:to="loc_us-gaap_BusinessAcquisitionAcquireeDomain_4117BCE7911EADB47FE9845A02A4E153" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180930.xsd#lqdt_MachinioCorporationMember" xlink:label="loc_lqdt_MachinioCorporationMember_F3A030E4E05673BA5D51845A02A4640D" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_BusinessAcquisitionAcquireeDomain_4117BCE7911EADB47FE9845A02A4E153" xlink:to="loc_lqdt_MachinioCorporationMember_F3A030E4E05673BA5D51845A02A4640D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StatementBusinessSegmentsAxis" xlink:label="loc_us-gaap_StatementBusinessSegmentsAxis_9D75A2F2E1D882D0FE8E845A02A5CE22" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable_5799E342830053B76BD1845A02A31717" xlink:to="loc_us-gaap_StatementBusinessSegmentsAxis_9D75A2F2E1D882D0FE8E845A02A5CE22" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SegmentDomain" xlink:label="loc_us-gaap_SegmentDomain_A3B7603E1FF63BBADE38845A02A5D831" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementBusinessSegmentsAxis_9D75A2F2E1D882D0FE8E845A02A5CE22" xlink:to="loc_us-gaap_SegmentDomain_A3B7603E1FF63BBADE38845A02A5D831" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180930.xsd#lqdt_IronDirectMember" xlink:label="loc_lqdt_IronDirectMember_C41CD400C3F95891DEE8845A02A5839F" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentDomain_A3B7603E1FF63BBADE38845A02A5D831" xlink:to="loc_lqdt_IronDirectMember_C41CD400C3F95891DEE8845A02A5839F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_CFF95F3C4D1DCC1E231D845A02A5552B" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable_5799E342830053B76BD1845A02A31717" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_CFF95F3C4D1DCC1E231D845A02A5552B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_80F3561016566214DB59845A02A6E983" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_CFF95F3C4D1DCC1E231D845A02A5552B" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_80F3561016566214DB59845A02A6E983" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ContractualRightsMember" xlink:label="loc_us-gaap_ContractualRightsMember_78A30718C46F21CB64CD845A02A62634" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_80F3561016566214DB59845A02A6E983" xlink:to="loc_us-gaap_ContractualRightsMember_78A30718C46F21CB64CD845A02A62634" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180930.xsd#lqdt_BrandAssetsAndDevelopedTechnologyRightsMember" xlink:label="loc_lqdt_BrandAssetsAndDevelopedTechnologyRightsMember_8BBE30920B1CF1E2E720845A02A68CD7" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_80F3561016566214DB59845A02A6E983" xlink:to="loc_lqdt_BrandAssetsAndDevelopedTechnologyRightsMember_8BBE30920B1CF1E2E720845A02A68CD7" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180930.xsd#lqdt_PatentsAndTrademarksMember" xlink:label="loc_lqdt_PatentsAndTrademarksMember_B66B37C3D94B44542AD9845A02A7356C" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_80F3561016566214DB59845A02A6E983" xlink:to="loc_lqdt_PatentsAndTrademarksMember_B66B37C3D94B44542AD9845A02A7356C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_NoncompeteAgreementsMember" xlink:label="loc_us-gaap_NoncompeteAgreementsMember_F4813A6C331CEDF87D2A845A02A76856" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_80F3561016566214DB59845A02A6E983" xlink:to="loc_us-gaap_NoncompeteAgreementsMember_F4813A6C331CEDF87D2A845A02A76856" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RangeAxis" xlink:label="loc_us-gaap_RangeAxis_A80E9243C9590D45A249845A02A72ACF" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable_5799E342830053B76BD1845A02A31717" xlink:to="loc_us-gaap_RangeAxis_A80E9243C9590D45A249845A02A72ACF" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RangeMember" xlink:label="loc_us-gaap_RangeMember_7DDB09D953174C6EE736845A02A71E7C" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RangeAxis_A80E9243C9590D45A249845A02A72ACF" xlink:to="loc_us-gaap_RangeMember_7DDB09D953174C6EE736845A02A71E7C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_MinimumMember" xlink:label="loc_us-gaap_MinimumMember_DAB7C08DA55798B2DDD4845A02A72371" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RangeMember_7DDB09D953174C6EE736845A02A71E7C" xlink:to="loc_us-gaap_MinimumMember_DAB7C08DA55798B2DDD4845A02A72371" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_MaximumMember" xlink:label="loc_us-gaap_MaximumMember_5B43A12DDCF0B4D7E059845A02A806F2" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RangeMember_7DDB09D953174C6EE736845A02A71E7C" xlink:to="loc_us-gaap_MaximumMember_5B43A12DDCF0B4D7E059845A02A806F2" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_WeightedAverageMember" xlink:label="loc_us-gaap_WeightedAverageMember_B92DDCAE7A10B4FF01E4845A02A8DCAC" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RangeMember_7DDB09D953174C6EE736845A02A71E7C" xlink:to="loc_us-gaap_WeightedAverageMember_B92DDCAE7A10B4FF01E4845A02A8DCAC" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis" xlink:label="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis_A7ABF4D7210F22792AFB845A02A85708" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable_5799E342830053B76BD1845A02A31717" xlink:to="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis_A7ABF4D7210F22792AFB845A02A85708" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain" xlink:label="loc_us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain_BB285E9042C82D8D0108845A02A84F4E" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis_A7ABF4D7210F22792AFB845A02A85708" xlink:to="loc_us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain_BB285E9042C82D8D0108845A02A84F4E" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180930.xsd#lqdt_TruckCenterMember" xlink:label="loc_lqdt_TruckCenterMember_A1B75715AC38270A9A39845A02A9A9BD" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain_BB285E9042C82D8D0108845A02A84F4E" xlink:to="loc_lqdt_TruckCenterMember_A1B75715AC38270A9A39845A02A9A9BD" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsLineItems" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_3FA11C235691B17EF91B845A02A98867" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable_5799E342830053B76BD1845A02A31717" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_3FA11C235691B17EF91B845A02A98867" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetUsefulLife" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetUsefulLife_A0D7FFB81A26F945FAD6845A02A986A8" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_3FA11C235691B17EF91B845A02A98867" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetUsefulLife_A0D7FFB81A26F945FAD6845A02A986A8" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsGross" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsGross_1D6E81C41D9E3AD016A6845A02AA509C" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_3FA11C235691B17EF91B845A02A98867" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsGross_1D6E81C41D9E3AD016A6845A02AA509C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization_ECD90DFF990C15736258845A02AA917D" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_3FA11C235691B17EF91B845A02A98867" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization_ECD90DFF990C15736258845A02AA917D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IntangibleAssetsNetExcludingGoodwill" xlink:label="loc_us-gaap_IntangibleAssetsNetExcludingGoodwill_632384F645BA25339694845A02AA7E4F" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_3FA11C235691B17EF91B845A02A98867" xlink:to="loc_us-gaap_IntangibleAssetsNetExcludingGoodwill_632384F645BA25339694845A02AA7E4F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessAcquisitionPercentageOfVotingInterestsAcquired" xlink:label="loc_us-gaap_BusinessAcquisitionPercentageOfVotingInterestsAcquired_33D064A8A7F5FCA9CF2E845A02ABFC71" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_3FA11C235691B17EF91B845A02A98867" xlink:to="loc_us-gaap_BusinessAcquisitionPercentageOfVotingInterestsAcquired_33D064A8A7F5FCA9CF2E845A02ABFC71" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AmortizationOfIntangibleAssets" xlink:label="loc_us-gaap_AmortizationOfIntangibleAssets_3F946C71A1E5F74F25B8845A02AB84CA" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_3FA11C235691B17EF91B845A02A98867" xlink:to="loc_us-gaap_AmortizationOfIntangibleAssets_3F946C71A1E5F74F25B8845A02AB84CA" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ImpairmentOfIntangibleAssetsFinitelived" xlink:label="loc_us-gaap_ImpairmentOfIntangibleAssetsFinitelived_EA562FC0C6B1F752D217845A02ABD44C" xlink:type="locator" />
    <link:presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" priority="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_3FA11C235691B17EF91B845A02A98867" xlink:to="loc_us-gaap_ImpairmentOfIntangibleAssetsFinitelived_EA562FC0C6B1F752D217845A02ABD44C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsNet" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsNet_35097CADAECC0D120873845A02AB139E" xlink:type="locator" />
    <link:presentationArc order="8" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_3FA11C235691B17EF91B845A02A98867" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsNet_35097CADAECC0D120873845A02AB139E" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://liquidityservices.com/role/IntangibleAssetsTables" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsNetAbstract" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsNetAbstract_6CF347EE487FFFAA73BC86E5D874AB7B" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTableTextBlock" xlink:label="loc_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTableTextBlock_FF6C8C13EDE9D7105BB486E5D875F919" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsNetAbstract_6CF347EE487FFFAA73BC86E5D874AB7B" xlink:to="loc_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTableTextBlock_FF6C8C13EDE9D7105BB486E5D875F919" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleofFiniteLivedIntangibleAssetsFutureAmortizationExpenseTableTextBlock" xlink:label="loc_us-gaap_ScheduleofFiniteLivedIntangibleAssetsFutureAmortizationExpenseTableTextBlock_8B2177E59D9006D864D486E5D8752A57" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsNetAbstract_6CF347EE487FFFAA73BC86E5D874AB7B" xlink:to="loc_us-gaap_ScheduleofFiniteLivedIntangibleAssetsFutureAmortizationExpenseTableTextBlock_8B2177E59D9006D864D486E5D8752A57" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://liquidityservices.com/role/LegalProceedings" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LossContingencyInformationAboutLitigationMattersAbstract" xlink:label="loc_us-gaap_LossContingencyInformationAboutLitigationMattersAbstract_5F8BAAE8600E346D9FCCF4D63A2B8C4A" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LegalMattersAndContingenciesTextBlock" xlink:label="loc_us-gaap_LegalMattersAndContingenciesTextBlock_C9ADF21D0348C34BF9EFF4D63A2BFD70" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LossContingencyInformationAboutLitigationMattersAbstract_5F8BAAE8600E346D9FCCF4D63A2B8C4A" xlink:to="loc_us-gaap_LegalMattersAndContingenciesTextBlock_C9ADF21D0348C34BF9EFF4D63A2BFD70" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://liquidityservices.com/role/LegalProceedingsDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LossContingencyInformationAboutLitigationMattersAbstract" xlink:label="loc_us-gaap_LossContingencyInformationAboutLitigationMattersAbstract_D6011F8FF9B704E1FBB8F4DA7D41B4E5" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LossContingencyEstimateOfPossibleLoss" xlink:label="loc_us-gaap_LossContingencyEstimateOfPossibleLoss_E33241C7B9D6F1201B83F4DA7E30D93F" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LossContingencyInformationAboutLitigationMattersAbstract_D6011F8FF9B704E1FBB8F4DA7D41B4E5" xlink:to="loc_us-gaap_LossContingencyEstimateOfPossibleLoss_E33241C7B9D6F1201B83F4DA7E30D93F" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://liquidityservices.com/role/Organization" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract" xlink:label="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_38A694EB1B82A1C1A68A86E5D6847C88" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_NatureOfOperations" xlink:label="loc_us-gaap_NatureOfOperations_50860AF5A2AE8AC8224A86E5D684FFD8" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_38A694EB1B82A1C1A68A86E5D6847C88" xlink:to="loc_us-gaap_NatureOfOperations_50860AF5A2AE8AC8224A86E5D684FFD8" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://liquidityservices.com/role/OrganizationDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract" xlink:label="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_F7DFB67F3E0461D7BF12845A03BCAF1F" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable" xlink:label="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_864380AD25C01DE5936884678AC8DF12" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_F7DFB67F3E0461D7BF12845A03BCAF1F" xlink:to="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_864380AD25C01DE5936884678AC8DF12" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessAcquisitionAxis" xlink:label="loc_us-gaap_BusinessAcquisitionAxis_742E85F86631ADCDC37684678C466273" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_864380AD25C01DE5936884678AC8DF12" xlink:to="loc_us-gaap_BusinessAcquisitionAxis_742E85F86631ADCDC37684678C466273" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessAcquisitionAcquireeDomain" xlink:label="loc_us-gaap_BusinessAcquisitionAcquireeDomain_96B0354E1BA9BCDCA58284678C4BB936" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_BusinessAcquisitionAxis_742E85F86631ADCDC37684678C466273" xlink:to="loc_us-gaap_BusinessAcquisitionAcquireeDomain_96B0354E1BA9BCDCA58284678C4BB936" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180930.xsd#lqdt_MachinioCorporationMember" xlink:label="loc_lqdt_MachinioCorporationMember_58785BF07ED3C318B40A84678CC5BF33" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_BusinessAcquisitionAcquireeDomain_96B0354E1BA9BCDCA58284678C4BB936" xlink:to="loc_lqdt_MachinioCorporationMember_58785BF07ED3C318B40A84678CC5BF33" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessAcquisitionLineItems" xlink:label="loc_us-gaap_BusinessAcquisitionLineItems_C725A117E3A80E0EDC2D84678AC95B2E" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_864380AD25C01DE5936884678AC8DF12" xlink:to="loc_us-gaap_BusinessAcquisitionLineItems_C725A117E3A80E0EDC2D84678AC95B2E" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180930.xsd#lqdt_NumberOfProductCategoriesOffered" xlink:label="loc_lqdt_NumberOfProductCategoriesOffered_81673B8104E24B8C62D0845A03BC27D6" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_C725A117E3A80E0EDC2D84678AC95B2E" xlink:to="loc_lqdt_NumberOfProductCategoriesOffered_81673B8104E24B8C62D0845A03BC27D6" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180930.xsd#lqdt_NumberOfClients" xlink:label="loc_lqdt_NumberOfClients_43190DADFA4E5EA8C059845A03BCCB01" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_C725A117E3A80E0EDC2D84678AC95B2E" xlink:to="loc_lqdt_NumberOfClients_43190DADFA4E5EA8C059845A03BCCB01" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_NumberOfReportableSegments" xlink:label="loc_us-gaap_NumberOfReportableSegments_F3A6522FCF4185E5C8D8845A03BD7CED" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_C725A117E3A80E0EDC2D84678AC95B2E" xlink:to="loc_us-gaap_NumberOfReportableSegments_F3A6522FCF4185E5C8D8845A03BD7CED" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessAcquisitionPercentageOfVotingInterestsAcquired" xlink:label="loc_us-gaap_BusinessAcquisitionPercentageOfVotingInterestsAcquired_7CFAC9032F028E159BE584678BD0C42B" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_C725A117E3A80E0EDC2D84678AC95B2E" xlink:to="loc_us-gaap_BusinessAcquisitionPercentageOfVotingInterestsAcquired_7CFAC9032F028E159BE584678BD0C42B" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://liquidityservices.com/role/PropertyAndEquipment" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PropertyPlantAndEquipmentAbstract" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentAbstract_104DE241A75E26EFC43A86E5D5503FC5" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PropertyPlantAndEquipmentDisclosureTextBlock" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentDisclosureTextBlock_32304E68541C619D21AA86E5D5505F92" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentAbstract_104DE241A75E26EFC43A86E5D5503FC5" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentDisclosureTextBlock_32304E68541C619D21AA86E5D5505F92" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://liquidityservices.com/role/PropertyAndEquipmentDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PropertyPlantAndEquipmentAbstract" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentAbstract_8C0BB896C095FE52E7462CCC17A4F718" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfPropertyPlantAndEquipmentTable" xlink:label="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_3B831CFE6765A0880AAB2CCC17A4B457" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentAbstract_8C0BB896C095FE52E7462CCC17A4F718" xlink:to="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_3B831CFE6765A0880AAB2CCC17A4B457" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StatementBusinessSegmentsAxis" xlink:label="loc_us-gaap_StatementBusinessSegmentsAxis_787DB525A785FE8DE8772CCC17A51517" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_3B831CFE6765A0880AAB2CCC17A4B457" xlink:to="loc_us-gaap_StatementBusinessSegmentsAxis_787DB525A785FE8DE8772CCC17A51517" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SegmentDomain" xlink:label="loc_us-gaap_SegmentDomain_9234BD89027D58A82D6C2CCC17A55F0C" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementBusinessSegmentsAxis_787DB525A785FE8DE8772CCC17A51517" xlink:to="loc_us-gaap_SegmentDomain_9234BD89027D58A82D6C2CCC17A55F0C" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180930.xsd#lqdt_IronDirectMember" xlink:label="loc_lqdt_IronDirectMember_959ED70DB9F8201C23582CCC17A520F3" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentDomain_9234BD89027D58A82D6C2CCC17A55F0C" xlink:to="loc_lqdt_IronDirectMember_959ED70DB9F8201C23582CCC17A520F3" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PropertyPlantAndEquipmentByTypeAxis" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_C6556FAF3204F8172D592CCC17A66B6C" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_3B831CFE6765A0880AAB2CCC17A4B457" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_C6556FAF3204F8172D592CCC17A66B6C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PropertyPlantAndEquipmentTypeDomain" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_2DCA9F61532FDEC51B272CCC17A614E8" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_C6556FAF3204F8172D592CCC17A66B6C" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_2DCA9F61532FDEC51B272CCC17A614E8" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180930.xsd#lqdt_ComputersAndSoftwareMember" xlink:label="loc_lqdt_ComputersAndSoftwareMember_D95AD572B671701649312CCC17A68D1A" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_2DCA9F61532FDEC51B272CCC17A614E8" xlink:to="loc_lqdt_ComputersAndSoftwareMember_D95AD572B671701649312CCC17A68D1A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SoftwareAndSoftwareDevelopmentCostsMember" xlink:label="loc_us-gaap_SoftwareAndSoftwareDevelopmentCostsMember_E30F26364D4788B9C5942CCC17A79BB4" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_2DCA9F61532FDEC51B272CCC17A614E8" xlink:to="loc_us-gaap_SoftwareAndSoftwareDevelopmentCostsMember_E30F26364D4788B9C5942CCC17A79BB4" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180930.xsd#lqdt_OfficeAndOperationalEquipmentMember" xlink:label="loc_lqdt_OfficeAndOperationalEquipmentMember_7BBD2B115FFB322F0F142CCC17A7B5C3" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_2DCA9F61532FDEC51B272CCC17A614E8" xlink:to="loc_lqdt_OfficeAndOperationalEquipmentMember_7BBD2B115FFB322F0F142CCC17A7B5C3" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LeaseholdImprovementsMember" xlink:label="loc_us-gaap_LeaseholdImprovementsMember_09DF29774B9FF8B419642CCC17A716F2" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_2DCA9F61532FDEC51B272CCC17A614E8" xlink:to="loc_us-gaap_LeaseholdImprovementsMember_09DF29774B9FF8B419642CCC17A716F2" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BuildingMember" xlink:label="loc_us-gaap_BuildingMember_F2AA9AFE1097940E46752CCC17A7EBA0" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_2DCA9F61532FDEC51B272CCC17A614E8" xlink:to="loc_us-gaap_BuildingMember_F2AA9AFE1097940E46752CCC17A7EBA0" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FurnitureAndFixturesMember" xlink:label="loc_us-gaap_FurnitureAndFixturesMember_24E15D6999DA474F47822CCC17A79475" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_2DCA9F61532FDEC51B272CCC17A614E8" xlink:to="loc_us-gaap_FurnitureAndFixturesMember_24E15D6999DA474F47822CCC17A79475" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_VehiclesMember" xlink:label="loc_us-gaap_VehiclesMember_6E9A3CBE5850E777AB412CCC17A70E65" xlink:type="locator" />
    <link:presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_2DCA9F61532FDEC51B272CCC17A614E8" xlink:to="loc_us-gaap_VehiclesMember_6E9A3CBE5850E777AB412CCC17A70E65" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LandMember" xlink:label="loc_us-gaap_LandMember_723B1C7899D1794FA9312CCC17A8A78D" xlink:type="locator" />
    <link:presentationArc order="8" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_2DCA9F61532FDEC51B272CCC17A614E8" xlink:to="loc_us-gaap_LandMember_723B1C7899D1794FA9312CCC17A8A78D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ConstructionInProgressMember" xlink:label="loc_us-gaap_ConstructionInProgressMember_60B37F9BBB81CE5730CA2CCC17A860FF" xlink:type="locator" />
    <link:presentationArc order="9" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_2DCA9F61532FDEC51B272CCC17A614E8" xlink:to="loc_us-gaap_ConstructionInProgressMember_60B37F9BBB81CE5730CA2CCC17A860FF" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PropertyPlantAndEquipmentLineItems" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentLineItems_BFCEDFC09029037DDEAF2CCC17A82F74" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_3B831CFE6765A0880AAB2CCC17A4B457" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentLineItems_BFCEDFC09029037DDEAF2CCC17A82F74" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PropertyPlantAndEquipmentGross" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentGross_20FE8F95FEB5458A58012CCC17A8FAD7" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_BFCEDFC09029037DDEAF2CCC17A82F74" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentGross_20FE8F95FEB5458A58012CCC17A8FAD7" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment" xlink:label="loc_us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment_D8F1C50DF2E3093980C72CCC17A8EC02" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_BFCEDFC09029037DDEAF2CCC17A82F74" xlink:to="loc_us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment_D8F1C50DF2E3093980C72CCC17A8EC02" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PropertyPlantAndEquipmentNet" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentNet_C4D341E6A7B0C8C9FC182CCC17A93840" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" priority="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_BFCEDFC09029037DDEAF2CCC17A82F74" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentNet_C4D341E6A7B0C8C9FC182CCC17A93840" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_Depreciation" xlink:label="loc_us-gaap_Depreciation_C79A4D098F5CE267286D2CCC17A98CB1" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_BFCEDFC09029037DDEAF2CCC17A82F74" xlink:to="loc_us-gaap_Depreciation_C79A4D098F5CE267286D2CCC17A98CB1" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PropertyPlantAndEquipmentTransfersAndChanges" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentTransfersAndChanges_5F49AE473FFD5C424F432CCC17A92699" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_BFCEDFC09029037DDEAF2CCC17A82F74" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentTransfersAndChanges_5F49AE473FFD5C424F432CCC17A92699" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PropertyPlantAndEquipmentAdditions" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentAdditions_5156D3E1D9C99EF7171E2CCC17A93501" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_BFCEDFC09029037DDEAF2CCC17A82F74" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentAdditions_5156D3E1D9C99EF7171E2CCC17A93501" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ImpairmentOfLongLivedAssetsHeldForUse" xlink:label="loc_us-gaap_ImpairmentOfLongLivedAssetsHeldForUse_043B2EF51B5114AA3CE22CCC17A92C49" xlink:type="locator" />
    <link:presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_BFCEDFC09029037DDEAF2CCC17A82F74" xlink:to="loc_us-gaap_ImpairmentOfLongLivedAssetsHeldForUse_043B2EF51B5114AA3CE22CCC17A92C49" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://liquidityservices.com/role/PropertyAndEquipmentTables" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PropertyPlantAndEquipmentAbstract" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentAbstract_A6D20461ECADDD65B01486E5D71E813F" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PropertyPlantAndEquipmentTextBlock" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentTextBlock_A54DF9BA82F22C7908EE86E5D71EC803" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentAbstract_A6D20461ECADDD65B01486E5D71E813F" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentTextBlock_A54DF9BA82F22C7908EE86E5D71EC803" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://liquidityservices.com/role/QuarterlyResultsUnaudited" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_QuarterlyFinancialInformationDisclosureAbstract" xlink:label="loc_us-gaap_QuarterlyFinancialInformationDisclosureAbstract_387B3AFB78D5791930EF86E5D6B9EF7B" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_QuarterlyFinancialDataAbstract" xlink:label="loc_us-gaap_QuarterlyFinancialDataAbstract_927FA6F35C17B4604F3386E5D6B9A15E" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_QuarterlyFinancialInformationDisclosureAbstract_387B3AFB78D5791930EF86E5D6B9EF7B" xlink:to="loc_us-gaap_QuarterlyFinancialDataAbstract_927FA6F35C17B4604F3386E5D6B9A15E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_QuarterlyFinancialInformationTextBlock" xlink:label="loc_us-gaap_QuarterlyFinancialInformationTextBlock_E92F29F089416312543986E5D6BA149C" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_QuarterlyFinancialDataAbstract_927FA6F35C17B4604F3386E5D6B9A15E" xlink:to="loc_us-gaap_QuarterlyFinancialInformationTextBlock_E92F29F089416312543986E5D6BA149C" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://liquidityservices.com/role/QuarterlyResultsUnauditedDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_QuarterlyFinancialInformationDisclosureAbstract" xlink:label="loc_us-gaap_QuarterlyFinancialInformationDisclosureAbstract_90A78D1D74D7082EAFED7583E5DB794E" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SelectedQuarterlyFinancialInformationAbstract" xlink:label="loc_us-gaap_SelectedQuarterlyFinancialInformationAbstract_B8AC5C8CBA75B11E1BC77583E5DC51E6" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_QuarterlyFinancialInformationDisclosureAbstract_90A78D1D74D7082EAFED7583E5DB794E" xlink:to="loc_us-gaap_SelectedQuarterlyFinancialInformationAbstract_B8AC5C8CBA75B11E1BC77583E5DC51E6" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SalesRevenueNet" xlink:label="loc_us-gaap_SalesRevenueNet_021F2B6AD15DBD956DFB7583E5DC482E" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SelectedQuarterlyFinancialInformationAbstract_B8AC5C8CBA75B11E1BC77583E5DC51E6" xlink:to="loc_us-gaap_SalesRevenueNet_021F2B6AD15DBD956DFB7583E5DC482E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_GrossProfit" xlink:label="loc_us-gaap_GrossProfit_207FD81D75299A9A89397583E70E8420" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SelectedQuarterlyFinancialInformationAbstract_B8AC5C8CBA75B11E1BC77583E5DC51E6" xlink:to="loc_us-gaap_GrossProfit_207FD81D75299A9A89397583E70E8420" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments_8DABBB1013A01265A2F57583E5DF774E" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" priority="9" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SelectedQuarterlyFinancialInformationAbstract_B8AC5C8CBA75B11E1BC77583E5DC51E6" xlink:to="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments_8DABBB1013A01265A2F57583E5DF774E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic" xlink:label="loc_us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic_4FA17CBAC6D49AF31F3C7583E5DFD13D" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SelectedQuarterlyFinancialInformationAbstract_B8AC5C8CBA75B11E1BC77583E5DC51E6" xlink:to="loc_us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic_4FA17CBAC6D49AF31F3C7583E5DFD13D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeStatementAbstract" xlink:label="loc_us-gaap_IncomeStatementAbstract_D3E51CD65C942C371D307583E5E0FFF5" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_QuarterlyFinancialInformationDisclosureAbstract_90A78D1D74D7082EAFED7583E5DB794E" xlink:to="loc_us-gaap_IncomeStatementAbstract_D3E51CD65C942C371D307583E5E0FFF5" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EarningsPerShareBasicAndDiluted" xlink:label="loc_us-gaap_EarningsPerShareBasicAndDiluted_DBE2F3EF4E161301D25A7583E5E08C4D" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="8" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementAbstract_D3E51CD65C942C371D307583E5E0FFF5" xlink:to="loc_us-gaap_EarningsPerShareBasicAndDiluted_DBE2F3EF4E161301D25A7583E5E08C4D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_WeightedAverageNumberOfShareOutstandingBasicAndDiluted" xlink:label="loc_us-gaap_WeightedAverageNumberOfShareOutstandingBasicAndDiluted_F699887C7B3990307D887583E5E07C02" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementAbstract_D3E51CD65C942C371D307583E5E0FFF5" xlink:to="loc_us-gaap_WeightedAverageNumberOfShareOutstandingBasicAndDiluted_F699887C7B3990307D887583E5E07C02" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://liquidityservices.com/role/QuarterlyResultsUnauditedTables" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_QuarterlyFinancialInformationDisclosureAbstract" xlink:label="loc_us-gaap_QuarterlyFinancialInformationDisclosureAbstract_BCFF5A2EC5A844971EC586E5D80633DB" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfQuarterlyFinancialInformationTableTextBlock" xlink:label="loc_us-gaap_ScheduleOfQuarterlyFinancialInformationTableTextBlock_53DCE1C0AB868312713586E5D806AD88" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_QuarterlyFinancialInformationDisclosureAbstract_BCFF5A2EC5A844971EC586E5D80633DB" xlink:to="loc_us-gaap_ScheduleOfQuarterlyFinancialInformationTableTextBlock_53DCE1C0AB868312713586E5D806AD88" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://liquidityservices.com/role/ScheduleIiValuationAndQualifyingAccounts" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ValuationAndQualifyingAccountsAbstract" xlink:label="loc_us-gaap_ValuationAndQualifyingAccountsAbstract_F225C0907C103B8D3A827EE940B13821" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfValuationAndQualifyingAccountsDisclosureTextBlock" xlink:label="loc_us-gaap_ScheduleOfValuationAndQualifyingAccountsDisclosureTextBlock_E82F8D4793C2BE02B3C67EE940B1A5C0" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ValuationAndQualifyingAccountsAbstract_F225C0907C103B8D3A827EE940B13821" xlink:to="loc_us-gaap_ScheduleOfValuationAndQualifyingAccountsDisclosureTextBlock_E82F8D4793C2BE02B3C67EE940B1A5C0" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://liquidityservices.com/role/ScheduleIiValuationAndQualifyingAccountsDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ValuationAndQualifyingAccountsAbstract" xlink:label="loc_us-gaap_ValuationAndQualifyingAccountsAbstract_65882687B1290741B4D47EE940993D0B" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ValuationAndQualifyingAccountsDisclosureTable" xlink:label="loc_us-gaap_ValuationAndQualifyingAccountsDisclosureTable_3BFEF9791AD0118E965D7EE9409DCC4F" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ValuationAndQualifyingAccountsAbstract_65882687B1290741B4D47EE940993D0B" xlink:to="loc_us-gaap_ValuationAndQualifyingAccountsDisclosureTable_3BFEF9791AD0118E965D7EE9409DCC4F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ValuationAllowancesAndReservesTypeAxis" xlink:label="loc_us-gaap_ValuationAllowancesAndReservesTypeAxis_1B1FD5F1204C8D56044C7EE9409EF6DA" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ValuationAndQualifyingAccountsDisclosureTable_3BFEF9791AD0118E965D7EE9409DCC4F" xlink:to="loc_us-gaap_ValuationAllowancesAndReservesTypeAxis_1B1FD5F1204C8D56044C7EE9409EF6DA" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ValuationAllowancesAndReservesDomain" xlink:label="loc_us-gaap_ValuationAllowancesAndReservesDomain_C9EBC142564C5DD3AED87EE9409F6E5C" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ValuationAllowancesAndReservesTypeAxis_1B1FD5F1204C8D56044C7EE9409EF6DA" xlink:to="loc_us-gaap_ValuationAllowancesAndReservesDomain_C9EBC142564C5DD3AED87EE9409F6E5C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ValuationAllowanceOfDeferredTaxAssetsMember" xlink:label="loc_us-gaap_ValuationAllowanceOfDeferredTaxAssetsMember_82F39561E3D28A8C94F47EE9409F0E40" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ValuationAllowancesAndReservesDomain_C9EBC142564C5DD3AED87EE9409F6E5C" xlink:to="loc_us-gaap_ValuationAllowanceOfDeferredTaxAssetsMember_82F39561E3D28A8C94F47EE9409F0E40" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AllowanceForTradeReceivablesMember" xlink:label="loc_us-gaap_AllowanceForTradeReceivablesMember_28F0454ACEA269BAC8147EE940A0005E" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ValuationAllowancesAndReservesDomain_C9EBC142564C5DD3AED87EE9409F6E5C" xlink:to="loc_us-gaap_AllowanceForTradeReceivablesMember_28F0454ACEA269BAC8147EE940A0005E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_InventoryValuationReserveMember" xlink:label="loc_us-gaap_InventoryValuationReserveMember_0F1473A5367C56548FB47EE940A051C4" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ValuationAllowancesAndReservesDomain_C9EBC142564C5DD3AED87EE9409F6E5C" xlink:to="loc_us-gaap_InventoryValuationReserveMember_0F1473A5367C56548FB47EE940A051C4" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ValuationAndQualifyingAccountsDisclosureLineItems" xlink:label="loc_us-gaap_ValuationAndQualifyingAccountsDisclosureLineItems_6814713665740B03BD1A7EE940A1F39B" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ValuationAndQualifyingAccountsDisclosureTable_3BFEF9791AD0118E965D7EE9409DCC4F" xlink:to="loc_us-gaap_ValuationAndQualifyingAccountsDisclosureLineItems_6814713665740B03BD1A7EE940A1F39B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_MovementInValuationAllowancesAndReservesRollForward" xlink:label="loc_us-gaap_MovementInValuationAllowancesAndReservesRollForward_3304AADEE37FC036E6077EE940A1F420" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ValuationAndQualifyingAccountsDisclosureLineItems_6814713665740B03BD1A7EE940A1F39B" xlink:to="loc_us-gaap_MovementInValuationAllowancesAndReservesRollForward_3304AADEE37FC036E6077EE940A1F420" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ValuationAllowancesAndReservesBalance" xlink:label="loc_us-gaap_ValuationAllowancesAndReservesBalance_B9670FF659A7507A45177EE940A21E2B" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/periodStartLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_MovementInValuationAllowancesAndReservesRollForward_3304AADEE37FC036E6077EE940A1F420" xlink:to="loc_us-gaap_ValuationAllowancesAndReservesBalance_B9670FF659A7507A45177EE940A21E2B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ValuationAllowancesAndReservesChargedToCostAndExpense" xlink:label="loc_us-gaap_ValuationAllowancesAndReservesChargedToCostAndExpense_8D06DD5AE303705054527EE940A29CEC" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_MovementInValuationAllowancesAndReservesRollForward_3304AADEE37FC036E6077EE940A1F420" xlink:to="loc_us-gaap_ValuationAllowancesAndReservesChargedToCostAndExpense_8D06DD5AE303705054527EE940A29CEC" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ValuationAllowancesAndReservesDeductions" xlink:label="loc_us-gaap_ValuationAllowancesAndReservesDeductions_7D0455C9FCFF2175D51D7EE940A6717B" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_MovementInValuationAllowancesAndReservesRollForward_3304AADEE37FC036E6077EE940A1F420" xlink:to="loc_us-gaap_ValuationAllowancesAndReservesDeductions_7D0455C9FCFF2175D51D7EE940A6717B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ValuationAllowancesAndReservesBalance" xlink:label="loc_us-gaap_ValuationAllowancesAndReservesBalance_41CA5288F1C3E87017DA7EE940A66A09" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/periodEndLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_MovementInValuationAllowancesAndReservesRollForward_3304AADEE37FC036E6077EE940A1F420" xlink:to="loc_us-gaap_ValuationAllowancesAndReservesBalance_41CA5288F1C3E87017DA7EE940A66A09" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://liquidityservices.com/role/SegmentInformation" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SegmentReportingAbstract" xlink:label="loc_us-gaap_SegmentReportingAbstract_945A8712F90105D8616A86E5D5EEB54C" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SegmentReportingDisclosureTextBlock" xlink:label="loc_us-gaap_SegmentReportingDisclosureTextBlock_435566A292E3A533943486E5D5EEB671" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentReportingAbstract_945A8712F90105D8616A86E5D5EEB54C" xlink:to="loc_us-gaap_SegmentReportingDisclosureTextBlock_435566A292E3A533943486E5D5EEB671" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://liquidityservices.com/role/SegmentInformationNarrativeDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SegmentReportingAbstract" xlink:label="loc_us-gaap_SegmentReportingAbstract_0B0C801F3123EB79736286E5D5F45CA5" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_NumberOfReportableSegments" xlink:label="loc_us-gaap_NumberOfReportableSegments_8BAAF38DE58EA560DB1586E5D5F56DC6" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentReportingAbstract_0B0C801F3123EB79736286E5D5F45CA5" xlink:to="loc_us-gaap_NumberOfReportableSegments_8BAAF38DE58EA560DB1586E5D5F56DC6" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180930.xsd#lqdt_ReportableSegmentsPercentageofRevenue" xlink:label="loc_lqdt_ReportableSegmentsPercentageofRevenue_10C6546C4ADC1138807386E5D5F5EF74" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentReportingAbstract_0B0C801F3123EB79736286E5D5F45CA5" xlink:to="loc_lqdt_ReportableSegmentsPercentageofRevenue_10C6546C4ADC1138807386E5D5F5EF74" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://liquidityservices.com/role/SegmentInformationPropertyAndEquipmentAdditionsBySegmentDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SegmentReportingAbstract" xlink:label="loc_us-gaap_SegmentReportingAbstract_EF1DE10C9A59670C4133559BAE8158DB" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable" xlink:label="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_DC01E71FB3C01D536ECA559BAE816753" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentReportingAbstract_EF1DE10C9A59670C4133559BAE8158DB" xlink:to="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_DC01E71FB3C01D536ECA559BAE816753" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ConsolidationItemsAxis" xlink:label="loc_us-gaap_ConsolidationItemsAxis_5EB7034E02682C837E75559BAE815F91" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_DC01E71FB3C01D536ECA559BAE816753" xlink:to="loc_us-gaap_ConsolidationItemsAxis_5EB7034E02682C837E75559BAE815F91" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ConsolidationItemsDomain" xlink:label="loc_us-gaap_ConsolidationItemsDomain_DDA6284945D8DAAB6E92559BAE864E79" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ConsolidationItemsAxis_5EB7034E02682C837E75559BAE815F91" xlink:to="loc_us-gaap_ConsolidationItemsDomain_DDA6284945D8DAAB6E92559BAE864E79" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OperatingSegmentsMember" xlink:label="loc_us-gaap_OperatingSegmentsMember_C3D5A96531A5BD20E558559BAE87444C" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ConsolidationItemsDomain_DDA6284945D8DAAB6E92559BAE864E79" xlink:to="loc_us-gaap_OperatingSegmentsMember_C3D5A96531A5BD20E558559BAE87444C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CorporateNonSegmentMember" xlink:label="loc_us-gaap_CorporateNonSegmentMember_3511909D60300504CEDB559BAE89090F" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ConsolidationItemsDomain_DDA6284945D8DAAB6E92559BAE864E79" xlink:to="loc_us-gaap_CorporateNonSegmentMember_3511909D60300504CEDB559BAE89090F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StatementBusinessSegmentsAxis" xlink:label="loc_us-gaap_StatementBusinessSegmentsAxis_F2D6D8C3E43778C677ED559BAE897837" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_DC01E71FB3C01D536ECA559BAE816753" xlink:to="loc_us-gaap_StatementBusinessSegmentsAxis_F2D6D8C3E43778C677ED559BAE897837" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SegmentDomain" xlink:label="loc_us-gaap_SegmentDomain_88E84AE53A2411E2F27B559BAE89747C" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementBusinessSegmentsAxis_F2D6D8C3E43778C677ED559BAE897837" xlink:to="loc_us-gaap_SegmentDomain_88E84AE53A2411E2F27B559BAE89747C" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180930.xsd#lqdt_GovDealsMember" xlink:label="loc_lqdt_GovDealsMember_D93001B674CBA2F55F86559BAE8B19B0" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentDomain_88E84AE53A2411E2F27B559BAE89747C" xlink:to="loc_lqdt_GovDealsMember_D93001B674CBA2F55F86559BAE8B19B0" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180930.xsd#lqdt_CAGMember" xlink:label="loc_lqdt_CAGMember_633A6BC15A8EC99AE55B559BAE8C2DE1" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentDomain_88E84AE53A2411E2F27B559BAE89747C" xlink:to="loc_lqdt_CAGMember_633A6BC15A8EC99AE55B559BAE8C2DE1" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180930.xsd#lqdt_RSCGMember" xlink:label="loc_lqdt_RSCGMember_EE121D3DCFBA13F0ABDE559BAE8C1FA1" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentDomain_88E84AE53A2411E2F27B559BAE89747C" xlink:to="loc_lqdt_RSCGMember_EE121D3DCFBA13F0ABDE559BAE8C1FA1" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180930.xsd#lqdt_MachinioCorporationMember" xlink:label="loc_lqdt_MachinioCorporationMember_CCE392CC16FBDDB5CE07559BAE8D8667" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentDomain_88E84AE53A2411E2F27B559BAE89747C" xlink:to="loc_lqdt_MachinioCorporationMember_CCE392CC16FBDDB5CE07559BAE8D8667" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SegmentReportingInformationLineItems" xlink:label="loc_us-gaap_SegmentReportingInformationLineItems_BE10CF3B60C4F7785EC0559BAE8DDF01" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_DC01E71FB3C01D536ECA559BAE816753" xlink:to="loc_us-gaap_SegmentReportingInformationLineItems_BE10CF3B60C4F7785EC0559BAE8DDF01" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PropertyPlantAndEquipmentAdditions" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentAdditions_D223DC78E9CB9F6A1F15559BAE8DBD96" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_BE10CF3B60C4F7785EC0559BAE8DDF01" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentAdditions_D223DC78E9CB9F6A1F15559BAE8DBD96" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://liquidityservices.com/role/SegmentInformationReconciliationFromSegmentsToConsolidatedDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SegmentReportingAbstract" xlink:label="loc_us-gaap_SegmentReportingAbstract_B659BBA3786DCB8336305FC3DC71DCDF" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_GrossProfit" xlink:label="loc_us-gaap_GrossProfit_FE6E0B5F33BCEFC467C05FC3DC72ED32" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentReportingAbstract_B659BBA3786DCB8336305FC3DC71DCDF" xlink:to="loc_us-gaap_GrossProfit_FE6E0B5F33BCEFC467C05FC3DC72ED32" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OperatingExpenses" xlink:label="loc_us-gaap_OperatingExpenses_D23F19F49BE1FAB8709C5FC3DC732EC3" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentReportingAbstract_B659BBA3786DCB8336305FC3DC71DCDF" xlink:to="loc_us-gaap_OperatingExpenses_D23F19F49BE1FAB8709C5FC3DC732EC3" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OtherCostAndExpenseOperating" xlink:label="loc_us-gaap_OtherCostAndExpenseOperating_7EC3E25747A494CEB9605FC3DC7367C9" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentReportingAbstract_B659BBA3786DCB8336305FC3DC71DCDF" xlink:to="loc_us-gaap_OtherCostAndExpenseOperating_7EC3E25747A494CEB9605FC3DC7367C9" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_InterestIncomeExpenseNet" xlink:label="loc_us-gaap_InterestIncomeExpenseNet_FC49566449BBCED809255FC3DC7312A4" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentReportingAbstract_B659BBA3786DCB8336305FC3DC71DCDF" xlink:to="loc_us-gaap_InterestIncomeExpenseNet_FC49566449BBCED809255FC3DC7312A4" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeTaxExpenseBenefit" xlink:label="loc_us-gaap_IncomeTaxExpenseBenefit_469B16C0851906EC2EB55FC3DC73AEF7" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentReportingAbstract_B659BBA3786DCB8336305FC3DC71DCDF" xlink:to="loc_us-gaap_IncomeTaxExpenseBenefit_469B16C0851906EC2EB55FC3DC73AEF7" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic" xlink:label="loc_us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic_891F5A8A7666940B7A9F5FC3DC73A361" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentReportingAbstract_B659BBA3786DCB8336305FC3DC71DCDF" xlink:to="loc_us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic_891F5A8A7666940B7A9F5FC3DC73A361" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://liquidityservices.com/role/SegmentInformationScheduleOfReportableSegmentsDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SegmentReportingAbstract" xlink:label="loc_us-gaap_SegmentReportingAbstract_45CDC29E7D9F9506EE027F6DFC132C4E" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable" xlink:label="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_06CD8D9A2D78142D71717F6DFC164213" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentReportingAbstract_45CDC29E7D9F9506EE027F6DFC132C4E" xlink:to="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_06CD8D9A2D78142D71717F6DFC164213" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ConsolidationItemsAxis" xlink:label="loc_us-gaap_ConsolidationItemsAxis_28B1CB69D3671DC502B67F6DFC183F0D" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_06CD8D9A2D78142D71717F6DFC164213" xlink:to="loc_us-gaap_ConsolidationItemsAxis_28B1CB69D3671DC502B67F6DFC183F0D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ConsolidationItemsDomain" xlink:label="loc_us-gaap_ConsolidationItemsDomain_ADC0E1C320C9D76EC1CF7F6DFC196768" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ConsolidationItemsAxis_28B1CB69D3671DC502B67F6DFC183F0D" xlink:to="loc_us-gaap_ConsolidationItemsDomain_ADC0E1C320C9D76EC1CF7F6DFC196768" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OperatingSegmentsMember" xlink:label="loc_us-gaap_OperatingSegmentsMember_B521C221F276B9F73F2D7F6DFC1AD44A" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ConsolidationItemsDomain_ADC0E1C320C9D76EC1CF7F6DFC196768" xlink:to="loc_us-gaap_OperatingSegmentsMember_B521C221F276B9F73F2D7F6DFC1AD44A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CorporateNonSegmentMember" xlink:label="loc_us-gaap_CorporateNonSegmentMember_2E1A10ED116E043EAC487F6DFC1B012C" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ConsolidationItemsDomain_ADC0E1C320C9D76EC1CF7F6DFC196768" xlink:to="loc_us-gaap_CorporateNonSegmentMember_2E1A10ED116E043EAC487F6DFC1B012C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StatementBusinessSegmentsAxis" xlink:label="loc_us-gaap_StatementBusinessSegmentsAxis_784ACD53F8C7D7AFB8107F6DFC1B54F8" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_06CD8D9A2D78142D71717F6DFC164213" xlink:to="loc_us-gaap_StatementBusinessSegmentsAxis_784ACD53F8C7D7AFB8107F6DFC1B54F8" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SegmentDomain" xlink:label="loc_us-gaap_SegmentDomain_F40345DB9E5A1323A2347F6DFC1BD187" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementBusinessSegmentsAxis_784ACD53F8C7D7AFB8107F6DFC1B54F8" xlink:to="loc_us-gaap_SegmentDomain_F40345DB9E5A1323A2347F6DFC1BD187" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180930.xsd#lqdt_GovDealsMember" xlink:label="loc_lqdt_GovDealsMember_8594BE374A97AB21DE7C7F6DFC1C67F1" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentDomain_F40345DB9E5A1323A2347F6DFC1BD187" xlink:to="loc_lqdt_GovDealsMember_8594BE374A97AB21DE7C7F6DFC1C67F1" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180930.xsd#lqdt_CAGMember" xlink:label="loc_lqdt_CAGMember_8968E06C614E9AB67A6C7F6DFC1CC446" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentDomain_F40345DB9E5A1323A2347F6DFC1BD187" xlink:to="loc_lqdt_CAGMember_8968E06C614E9AB67A6C7F6DFC1CC446" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180930.xsd#lqdt_RSCGMember" xlink:label="loc_lqdt_RSCGMember_5202B344521D243F811D7F6DFC1C50B4" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentDomain_F40345DB9E5A1323A2347F6DFC1BD187" xlink:to="loc_lqdt_RSCGMember_5202B344521D243F811D7F6DFC1C50B4" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180930.xsd#lqdt_MachinioCorporationMember" xlink:label="loc_lqdt_MachinioCorporationMember_F9A66EEF2CE2ECC244177F6DFC1C006F" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentDomain_F40345DB9E5A1323A2347F6DFC1BD187" xlink:to="loc_lqdt_MachinioCorporationMember_F9A66EEF2CE2ECC244177F6DFC1C006F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SegmentReportingInformationLineItems" xlink:label="loc_us-gaap_SegmentReportingInformationLineItems_FE7D3852477A20180D4A7F6DFC1DE583" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_06CD8D9A2D78142D71717F6DFC164213" xlink:to="loc_us-gaap_SegmentReportingInformationLineItems_FE7D3852477A20180D4A7F6DFC1DE583" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SalesRevenueGoodsNet" xlink:label="loc_us-gaap_SalesRevenueGoodsNet_092A1F079BF74B59351F7F6DFC1D91F1" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_FE7D3852477A20180D4A7F6DFC1DE583" xlink:to="loc_us-gaap_SalesRevenueGoodsNet_092A1F079BF74B59351F7F6DFC1D91F1" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SalesRevenueServicesNet" xlink:label="loc_us-gaap_SalesRevenueServicesNet_2A783066471C8603F5F17F6DFC1FD8FF" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_FE7D3852477A20180D4A7F6DFC1DE583" xlink:to="loc_us-gaap_SalesRevenueServicesNet_2A783066471C8603F5F17F6DFC1FD8FF" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SalesRevenueNet" xlink:label="loc_us-gaap_SalesRevenueNet_9BD17DBC420E486168A57F6DFC206259" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_FE7D3852477A20180D4A7F6DFC1DE583" xlink:to="loc_us-gaap_SalesRevenueNet_9BD17DBC420E486168A57F6DFC206259" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_GrossProfit" xlink:label="loc_us-gaap_GrossProfit_450928CDA2A9EEC56AF47F6DFC20BB25" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_FE7D3852477A20180D4A7F6DFC1DE583" xlink:to="loc_us-gaap_GrossProfit_450928CDA2A9EEC56AF47F6DFC20BB25" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DepreciationDepletionAndAmortization" xlink:label="loc_us-gaap_DepreciationDepletionAndAmortization_6088DD2B6E86DCD8E0377F6DFC20335B" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_FE7D3852477A20180D4A7F6DFC1DE583" xlink:to="loc_us-gaap_DepreciationDepletionAndAmortization_6088DD2B6E86DCD8E0377F6DFC20335B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OtherOperatingIncomeExpenseNet" xlink:label="loc_us-gaap_OtherOperatingIncomeExpenseNet_5F63BEF23E8B757EC0447F6DFC20D22C" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_FE7D3852477A20180D4A7F6DFC1DE583" xlink:to="loc_us-gaap_OtherOperatingIncomeExpenseNet_5F63BEF23E8B757EC0447F6DFC20D22C" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://liquidityservices.com/role/SegmentInformationScheduleOfRevenuesByCountryDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SegmentReportingAbstract" xlink:label="loc_us-gaap_SegmentReportingAbstract_0D0402A593DED25AA0AA86E5D5E89474" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable" xlink:label="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_156DFF9DDB040684612C86E5D5E89CD8" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentReportingAbstract_0D0402A593DED25AA0AA86E5D5E89474" xlink:to="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_156DFF9DDB040684612C86E5D5E89CD8" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StatementGeographicalAxis" xlink:label="loc_us-gaap_StatementGeographicalAxis_E0F4C65A702790426F4F86E5D5E99FE2" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_156DFF9DDB040684612C86E5D5E89CD8" xlink:to="loc_us-gaap_StatementGeographicalAxis_E0F4C65A702790426F4F86E5D5E99FE2" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SegmentGeographicalDomain" xlink:label="loc_us-gaap_SegmentGeographicalDomain_C7DF42906626E8C23F3086E5D5E99B2E" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementGeographicalAxis_E0F4C65A702790426F4F86E5D5E99FE2" xlink:to="loc_us-gaap_SegmentGeographicalDomain_C7DF42906626E8C23F3086E5D5E99B2E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.sec.gov/country/2017/country-2017-01-31.xsd#country_US" xlink:label="loc_country_US_E1C2CA82B21903A37EB886E5D5EAAD77" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentGeographicalDomain_C7DF42906626E8C23F3086E5D5E99B2E" xlink:to="loc_country_US_E1C2CA82B21903A37EB886E5D5EAAD77" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_NonUsMember" xlink:label="loc_us-gaap_NonUsMember_EF1C220F7B7117D06B5886E5D5EA3053" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentGeographicalDomain_C7DF42906626E8C23F3086E5D5E99B2E" xlink:to="loc_us-gaap_NonUsMember_EF1C220F7B7117D06B5886E5D5EA3053" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SegmentReportingInformationLineItems" xlink:label="loc_us-gaap_SegmentReportingInformationLineItems_BD7FCF2000C0553EAE9D86E5D5EB3943" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_156DFF9DDB040684612C86E5D5E89CD8" xlink:to="loc_us-gaap_SegmentReportingInformationLineItems_BD7FCF2000C0553EAE9D86E5D5EB3943" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SalesRevenueNet" xlink:label="loc_us-gaap_SalesRevenueNet_18756490719169C7C12686E5D5EB683A" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_BD7FCF2000C0553EAE9D86E5D5EB3943" xlink:to="loc_us-gaap_SalesRevenueNet_18756490719169C7C12686E5D5EB683A" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://liquidityservices.com/role/SegmentInformationScheduleOfTotalLongLivedAssetsByGeographicalLocationDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SegmentReportingAbstract" xlink:label="loc_us-gaap_SegmentReportingAbstract_A6686523D95757ECF14F0962C730E0BD" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable" xlink:label="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_2329F6896CED9E240CDF0962C7319B80" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentReportingAbstract_A6686523D95757ECF14F0962C730E0BD" xlink:to="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_2329F6896CED9E240CDF0962C7319B80" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StatementGeographicalAxis" xlink:label="loc_us-gaap_StatementGeographicalAxis_A09097AADA6B082E6D670962C7311ABB" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_2329F6896CED9E240CDF0962C7319B80" xlink:to="loc_us-gaap_StatementGeographicalAxis_A09097AADA6B082E6D670962C7311ABB" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SegmentGeographicalDomain" xlink:label="loc_us-gaap_SegmentGeographicalDomain_FC6940079042A6B9D6B70962C732C23B" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementGeographicalAxis_A09097AADA6B082E6D670962C7311ABB" xlink:to="loc_us-gaap_SegmentGeographicalDomain_FC6940079042A6B9D6B70962C732C23B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.sec.gov/country/2017/country-2017-01-31.xsd#country_US" xlink:label="loc_country_US_840A9FD8ABFD8A88C0D60962C7328748" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentGeographicalDomain_FC6940079042A6B9D6B70962C732C23B" xlink:to="loc_country_US_840A9FD8ABFD8A88C0D60962C7328748" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_NonUsMember" xlink:label="loc_us-gaap_NonUsMember_DC2046D214E763D573B40962C732461A" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentGeographicalDomain_FC6940079042A6B9D6B70962C732C23B" xlink:to="loc_us-gaap_NonUsMember_DC2046D214E763D573B40962C732461A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SegmentReportingInformationLineItems" xlink:label="loc_us-gaap_SegmentReportingInformationLineItems_6E872B975316F71895F60962C73218E3" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_2329F6896CED9E240CDF0962C7319B80" xlink:to="loc_us-gaap_SegmentReportingInformationLineItems_6E872B975316F71895F60962C73218E3" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PropertyPlantAndEquipmentNet" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentNet_489C42708FE694CC343D0962C733C99E" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_6E872B975316F71895F60962C73218E3" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentNet_489C42708FE694CC343D0962C733C99E" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://liquidityservices.com/role/SegmentInformationScheduleOfTotalSegmentAssetsDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SegmentReportingAbstract" xlink:label="loc_us-gaap_SegmentReportingAbstract_FCC774A108F7FC718847559BAEA2C74D" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable" xlink:label="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_4BA1EEBB39385C662915559BAEA23D7E" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentReportingAbstract_FCC774A108F7FC718847559BAEA2C74D" xlink:to="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_4BA1EEBB39385C662915559BAEA23D7E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ConsolidationItemsAxis" xlink:label="loc_us-gaap_ConsolidationItemsAxis_A230B87687DAEEC029DF559BAEA2DFA0" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_4BA1EEBB39385C662915559BAEA23D7E" xlink:to="loc_us-gaap_ConsolidationItemsAxis_A230B87687DAEEC029DF559BAEA2DFA0" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ConsolidationItemsDomain" xlink:label="loc_us-gaap_ConsolidationItemsDomain_1AE9032E949FE90390E7559BAEA351BE" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ConsolidationItemsAxis_A230B87687DAEEC029DF559BAEA2DFA0" xlink:to="loc_us-gaap_ConsolidationItemsDomain_1AE9032E949FE90390E7559BAEA351BE" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OperatingSegmentsMember" xlink:label="loc_us-gaap_OperatingSegmentsMember_8F6BE0AAE1AB27548F87559BAEA6ED79" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ConsolidationItemsDomain_1AE9032E949FE90390E7559BAEA351BE" xlink:to="loc_us-gaap_OperatingSegmentsMember_8F6BE0AAE1AB27548F87559BAEA6ED79" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CorporateNonSegmentMember" xlink:label="loc_us-gaap_CorporateNonSegmentMember_6F180439CDB2DBB7A2F0559BAEA75A5C" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ConsolidationItemsDomain_1AE9032E949FE90390E7559BAEA351BE" xlink:to="loc_us-gaap_CorporateNonSegmentMember_6F180439CDB2DBB7A2F0559BAEA75A5C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StatementBusinessSegmentsAxis" xlink:label="loc_us-gaap_StatementBusinessSegmentsAxis_61F45AF7C0B28D0BC535559BAEA87155" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_4BA1EEBB39385C662915559BAEA23D7E" xlink:to="loc_us-gaap_StatementBusinessSegmentsAxis_61F45AF7C0B28D0BC535559BAEA87155" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SegmentDomain" xlink:label="loc_us-gaap_SegmentDomain_E4A0CD8522E28DC737A2559BAEA9943E" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementBusinessSegmentsAxis_61F45AF7C0B28D0BC535559BAEA87155" xlink:to="loc_us-gaap_SegmentDomain_E4A0CD8522E28DC737A2559BAEA9943E" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180930.xsd#lqdt_GovDealsMember" xlink:label="loc_lqdt_GovDealsMember_FC8C39ADBA558ACDB4F8559BAEA9E685" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentDomain_E4A0CD8522E28DC737A2559BAEA9943E" xlink:to="loc_lqdt_GovDealsMember_FC8C39ADBA558ACDB4F8559BAEA9E685" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180930.xsd#lqdt_CAGMember" xlink:label="loc_lqdt_CAGMember_CFDEF72F0B86F96C6A4F559BAEAAA3D6" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentDomain_E4A0CD8522E28DC737A2559BAEA9943E" xlink:to="loc_lqdt_CAGMember_CFDEF72F0B86F96C6A4F559BAEAAA3D6" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180930.xsd#lqdt_RSCGMember" xlink:label="loc_lqdt_RSCGMember_BF9F78CA3FD296639821559BAEAACAD3" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentDomain_E4A0CD8522E28DC737A2559BAEA9943E" xlink:to="loc_lqdt_RSCGMember_BF9F78CA3FD296639821559BAEAACAD3" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180930.xsd#lqdt_MachinioCorporationMember" xlink:label="loc_lqdt_MachinioCorporationMember_60E9BC67018FDCD9056B559BAEABF897" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentDomain_E4A0CD8522E28DC737A2559BAEA9943E" xlink:to="loc_lqdt_MachinioCorporationMember_60E9BC67018FDCD9056B559BAEABF897" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SegmentReportingInformationLineItems" xlink:label="loc_us-gaap_SegmentReportingInformationLineItems_D55B86E7E356642C749F559BAEAB3242" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_4BA1EEBB39385C662915559BAEA23D7E" xlink:to="loc_us-gaap_SegmentReportingInformationLineItems_D55B86E7E356642C749F559BAEAB3242" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_Assets" xlink:label="loc_us-gaap_Assets_DAB3B426DC6856D8AB97559BAEAB6D61" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_D55B86E7E356642C749F559BAEAB3242" xlink:to="loc_us-gaap_Assets_DAB3B426DC6856D8AB97559BAEAB6D61" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://liquidityservices.com/role/SegmentInformationTables" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SegmentReportingAbstract" xlink:label="loc_us-gaap_SegmentReportingAbstract_A67459079ED93EB71F9786E5D79AFAB5" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfSegmentReportingInformationBySegmentTextBlock" xlink:label="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTextBlock_2EDEB696DD38FFD8A21186E5D79A172A" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentReportingAbstract_A67459079ED93EB71F9786E5D79AFAB5" xlink:to="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTextBlock_2EDEB696DD38FFD8A21186E5D79A172A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ReconciliationOfRevenueFromSegmentsToConsolidatedTextBlock" xlink:label="loc_us-gaap_ReconciliationOfRevenueFromSegmentsToConsolidatedTextBlock_3D8F3E6C2609306A367F86E5D79B3C92" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentReportingAbstract_A67459079ED93EB71F9786E5D79AFAB5" xlink:to="loc_us-gaap_ReconciliationOfRevenueFromSegmentsToConsolidatedTextBlock_3D8F3E6C2609306A367F86E5D79B3C92" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://liquidityservices.com/role/SignificantContracts" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ContractorsAbstract" xlink:label="loc_us-gaap_ContractorsAbstract_8F5BE5271A5D9CA17DD086E5D71AD01B" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LongTermContractsOrProgramsDisclosureTextBlock" xlink:label="loc_us-gaap_LongTermContractsOrProgramsDisclosureTextBlock_CC695E47C18E1D0CAE4786E5D71B8A2F" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ContractorsAbstract_8F5BE5271A5D9CA17DD086E5D71AD01B" xlink:to="loc_us-gaap_LongTermContractsOrProgramsDisclosureTextBlock_CC695E47C18E1D0CAE4786E5D71B8A2F" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://liquidityservices.com/role/SignificantContractsDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ContractorsAbstract" xlink:label="loc_us-gaap_ContractorsAbstract_78A8C436B145F892E10BFA5078C39CF8" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfCollaborativeArrangementsAndNoncollaborativeArrangementTransactionsTable" xlink:label="loc_us-gaap_ScheduleOfCollaborativeArrangementsAndNoncollaborativeArrangementTransactionsTable_20EFCD174C869BF8CDE8FA5078C32581" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ContractorsAbstract_78A8C436B145F892E10BFA5078C39CF8" xlink:to="loc_us-gaap_ScheduleOfCollaborativeArrangementsAndNoncollaborativeArrangementTransactionsTable_20EFCD174C869BF8CDE8FA5078C32581" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_TypeOfArrangementAxis" xlink:label="loc_us-gaap_TypeOfArrangementAxis_E096B84BE5553420E2D0FA5078C30029" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfCollaborativeArrangementsAndNoncollaborativeArrangementTransactionsTable_20EFCD174C869BF8CDE8FA5078C32581" xlink:to="loc_us-gaap_TypeOfArrangementAxis_E096B84BE5553420E2D0FA5078C30029" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ArrangementsAndNonarrangementTransactionsMember" xlink:label="loc_us-gaap_ArrangementsAndNonarrangementTransactionsMember_C4DFA8C218AC926C0ECCFA5078C4B25A" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_TypeOfArrangementAxis_E096B84BE5553420E2D0FA5078C30029" xlink:to="loc_us-gaap_ArrangementsAndNonarrangementTransactionsMember_C4DFA8C218AC926C0ECCFA5078C4B25A" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180930.xsd#lqdt_SurplusContractMember" xlink:label="loc_lqdt_SurplusContractMember_E83D0D15E9DD9CE8B3D5FA5078C5BCC4" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ArrangementsAndNonarrangementTransactionsMember_C4DFA8C218AC926C0ECCFA5078C4B25A" xlink:to="loc_lqdt_SurplusContractMember_E83D0D15E9DD9CE8B3D5FA5078C5BCC4" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180930.xsd#lqdt_ScrapContractMember" xlink:label="loc_lqdt_ScrapContractMember_D4E74E5FACE85562A9ABFA5078C5251B" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ArrangementsAndNonarrangementTransactionsMember_C4DFA8C218AC926C0ECCFA5078C4B25A" xlink:to="loc_lqdt_ScrapContractMember_D4E74E5FACE85562A9ABFA5078C5251B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ProductOrServiceAxis" xlink:label="loc_us-gaap_ProductOrServiceAxis_F666F4A18C5A3592E226FA5078C5C6BC" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfCollaborativeArrangementsAndNoncollaborativeArrangementTransactionsTable_20EFCD174C869BF8CDE8FA5078C32581" xlink:to="loc_us-gaap_ProductOrServiceAxis_F666F4A18C5A3592E226FA5078C5C6BC" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ProductsAndServicesDomain" xlink:label="loc_us-gaap_ProductsAndServicesDomain_15CE10950C9E343E74EBFA5078C66C3F" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ProductOrServiceAxis_F666F4A18C5A3592E226FA5078C5C6BC" xlink:to="loc_us-gaap_ProductsAndServicesDomain_15CE10950C9E343E74EBFA5078C66C3F" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180930.xsd#lqdt_NonrollingStockSurplusContractMember" xlink:label="loc_lqdt_NonrollingStockSurplusContractMember_E46036FFA59AF989158FFA5078C60F63" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ProductsAndServicesDomain_15CE10950C9E343E74EBFA5078C66C3F" xlink:to="loc_lqdt_NonrollingStockSurplusContractMember_E46036FFA59AF989158FFA5078C60F63" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ConcentrationRiskByTypeAxis" xlink:label="loc_us-gaap_ConcentrationRiskByTypeAxis_18BE062BF0E849B76BB2FA5078C7D97D" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfCollaborativeArrangementsAndNoncollaborativeArrangementTransactionsTable_20EFCD174C869BF8CDE8FA5078C32581" xlink:to="loc_us-gaap_ConcentrationRiskByTypeAxis_18BE062BF0E849B76BB2FA5078C7D97D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ConcentrationRiskTypeDomain" xlink:label="loc_us-gaap_ConcentrationRiskTypeDomain_78D34EEBA0959B12BAACFA5078C7444A" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ConcentrationRiskByTypeAxis_18BE062BF0E849B76BB2FA5078C7D97D" xlink:to="loc_us-gaap_ConcentrationRiskTypeDomain_78D34EEBA0959B12BAACFA5078C7444A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_GovernmentContractsConcentrationRiskMember" xlink:label="loc_us-gaap_GovernmentContractsConcentrationRiskMember_9FB665011FC4327D4F1AFA5078C8C7C0" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ConcentrationRiskTypeDomain_78D34EEBA0959B12BAACFA5078C7444A" xlink:to="loc_us-gaap_GovernmentContractsConcentrationRiskMember_9FB665011FC4327D4F1AFA5078C8C7C0" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ConcentrationRiskByBenchmarkAxis" xlink:label="loc_us-gaap_ConcentrationRiskByBenchmarkAxis_009D3879FD3CECD43775FA5078C80607" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfCollaborativeArrangementsAndNoncollaborativeArrangementTransactionsTable_20EFCD174C869BF8CDE8FA5078C32581" xlink:to="loc_us-gaap_ConcentrationRiskByBenchmarkAxis_009D3879FD3CECD43775FA5078C80607" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ConcentrationRiskBenchmarkDomain" xlink:label="loc_us-gaap_ConcentrationRiskBenchmarkDomain_09F07BA36D1318B022E1FA5078C8EA56" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ConcentrationRiskByBenchmarkAxis_009D3879FD3CECD43775FA5078C80607" xlink:to="loc_us-gaap_ConcentrationRiskBenchmarkDomain_09F07BA36D1318B022E1FA5078C8EA56" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SalesRevenueNetMember" xlink:label="loc_us-gaap_SalesRevenueNetMember_453EB4F241B4C3946FDFFA5078C937E0" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ConcentrationRiskBenchmarkDomain_09F07BA36D1318B022E1FA5078C8EA56" xlink:to="loc_us-gaap_SalesRevenueNetMember_453EB4F241B4C3946FDFFA5078C937E0" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CollaborativeArrangementsAndNoncollaborativeArrangementTransactionsLineItems" xlink:label="loc_us-gaap_CollaborativeArrangementsAndNoncollaborativeArrangementTransactionsLineItems_320281B1ADF6DA09A5FFFA5078C9B864" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfCollaborativeArrangementsAndNoncollaborativeArrangementTransactionsTable_20EFCD174C869BF8CDE8FA5078C32581" xlink:to="loc_us-gaap_CollaborativeArrangementsAndNoncollaborativeArrangementTransactionsLineItems_320281B1ADF6DA09A5FFFA5078C9B864" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180930.xsd#lqdt_NumberOfContracts" xlink:label="loc_lqdt_NumberOfContracts_59A536B12350271838ACFA5078C9DA39" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CollaborativeArrangementsAndNoncollaborativeArrangementTransactionsLineItems_320281B1ADF6DA09A5FFFA5078C9B864" xlink:to="loc_lqdt_NumberOfContracts_59A536B12350271838ACFA5078C9DA39" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180930.xsd#lqdt_ContractTerm" xlink:label="loc_lqdt_ContractTerm_966D48D6DFB233AB23DDFA5078CA702A" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CollaborativeArrangementsAndNoncollaborativeArrangementTransactionsLineItems_320281B1ADF6DA09A5FFFA5078C9B864" xlink:to="loc_lqdt_ContractTerm_966D48D6DFB233AB23DDFA5078CA702A" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180930.xsd#lqdt_RevenueFromContractWithCustomerNumberOfContractExtensions" xlink:label="loc_lqdt_RevenueFromContractWithCustomerNumberOfContractExtensions_38AEE2F4DD9DEF725D08FA5078CAF63E" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CollaborativeArrangementsAndNoncollaborativeArrangementTransactionsLineItems_320281B1ADF6DA09A5FFFA5078C9B864" xlink:to="loc_lqdt_RevenueFromContractWithCustomerNumberOfContractExtensions_38AEE2F4DD9DEF725D08FA5078CAF63E" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180930.xsd#lqdt_RenewalOptionsExtendedTerm" xlink:label="loc_lqdt_RenewalOptionsExtendedTerm_9A9D3D2229706D9141B2FA5078CA1390" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CollaborativeArrangementsAndNoncollaborativeArrangementTransactionsLineItems_320281B1ADF6DA09A5FFFA5078C9B864" xlink:to="loc_lqdt_RenewalOptionsExtendedTerm_9A9D3D2229706D9141B2FA5078CA1390" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180930.xsd#lqdt_AdjustedPercentageOfProfitSharingDistribution" xlink:label="loc_lqdt_AdjustedPercentageOfProfitSharingDistribution_F334D908B6BEF907F9BFFA5078CAD307" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CollaborativeArrangementsAndNoncollaborativeArrangementTransactionsLineItems_320281B1ADF6DA09A5FFFA5078C9B864" xlink:to="loc_lqdt_AdjustedPercentageOfProfitSharingDistribution_F334D908B6BEF907F9BFFA5078CAD307" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ConcentrationRiskPercentage1" xlink:label="loc_us-gaap_ConcentrationRiskPercentage1_997394730172549CC832FA5078CAF075" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CollaborativeArrangementsAndNoncollaborativeArrangementTransactionsLineItems_320281B1ADF6DA09A5FFFA5078C9B864" xlink:to="loc_us-gaap_ConcentrationRiskPercentage1_997394730172549CC832FA5078CAF075" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180930.xsd#lqdt_UsableSurplusPropertyToBePurchasedAsPercentageOfOriginalAcquisitionValue" xlink:label="loc_lqdt_UsableSurplusPropertyToBePurchasedAsPercentageOfOriginalAcquisitionValue_C4A8630518295B5E1AECFA5078CB6413" xlink:type="locator" />
    <link:presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CollaborativeArrangementsAndNoncollaborativeArrangementTransactionsLineItems_320281B1ADF6DA09A5FFFA5078C9B864" xlink:to="loc_lqdt_UsableSurplusPropertyToBePurchasedAsPercentageOfOriginalAcquisitionValue_C4A8630518295B5E1AECFA5078CB6413" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180930.xsd#lqdt_PercentageOfProfitsRetained" xlink:label="loc_lqdt_PercentageOfProfitsRetained_7719BD63F4A15959F046FA5078CB5408" xlink:type="locator" />
    <link:presentationArc order="8" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CollaborativeArrangementsAndNoncollaborativeArrangementTransactionsLineItems_320281B1ADF6DA09A5FFFA5078C9B864" xlink:to="loc_lqdt_PercentageOfProfitsRetained_7719BD63F4A15959F046FA5078CB5408" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180930.xsd#lqdt_AccruedExpensesAndOtherCurrentLiabilities" xlink:label="loc_lqdt_AccruedExpensesAndOtherCurrentLiabilities_0C9429D2415C3864BB3BFA5078CBA4B8" xlink:type="locator" />
    <link:presentationArc order="9" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" priority="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CollaborativeArrangementsAndNoncollaborativeArrangementTransactionsLineItems_320281B1ADF6DA09A5FFFA5078C9B864" xlink:to="loc_lqdt_AccruedExpensesAndOtherCurrentLiabilities_0C9429D2415C3864BB3BFA5078CBA4B8" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://liquidityservices.com/role/SummaryOfSignificantAccountingPolicies" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AccountingPoliciesAbstract" xlink:label="loc_us-gaap_AccountingPoliciesAbstract_D86E0400D6B4277A5DAD86E5D853EA26" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SignificantAccountingPoliciesTextBlock" xlink:label="loc_us-gaap_SignificantAccountingPoliciesTextBlock_47025BAD388E2FE8297C86E5D85353BF" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_D86E0400D6B4277A5DAD86E5D853EA26" xlink:to="loc_us-gaap_SignificantAccountingPoliciesTextBlock_47025BAD388E2FE8297C86E5D85353BF" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://liquidityservices.com/role/SummaryOfSignificantAccountingPoliciesAccountingStandardsAdoptedDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AccountingPoliciesAbstract" xlink:label="loc_us-gaap_AccountingPoliciesAbstract_F065F20B43B16FAAFC95845A032EC55B" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleTable" xlink:label="loc_us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleTable_F0198E8425075FDCB4EA845A032E97E6" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_F065F20B43B16FAAFC95845A032EC55B" xlink:to="loc_us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleTable_F0198E8425075FDCB4EA845A032E97E6" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StatementScenarioAxis" xlink:label="loc_us-gaap_StatementScenarioAxis_E33E767A511FE3F571B8845A032ECD62" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleTable_F0198E8425075FDCB4EA845A032E97E6" xlink:to="loc_us-gaap_StatementScenarioAxis_E33E767A511FE3F571B8845A032ECD62" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScenarioUnspecifiedDomain" xlink:label="loc_us-gaap_ScenarioUnspecifiedDomain_197A156AEA02C5396939845A032E2A9D" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementScenarioAxis_E33E767A511FE3F571B8845A032ECD62" xlink:to="loc_us-gaap_ScenarioUnspecifiedDomain_197A156AEA02C5396939845A032E2A9D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScenarioForecastMember" xlink:label="loc_us-gaap_ScenarioForecastMember_28690543503DFBFB8E98845A032F919F" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScenarioUnspecifiedDomain_197A156AEA02C5396939845A032E2A9D" xlink:to="loc_us-gaap_ScenarioForecastMember_28690543503DFBFB8E98845A032F919F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_InitialApplicationPeriodCumulativeEffectTransitionAxis" xlink:label="loc_us-gaap_InitialApplicationPeriodCumulativeEffectTransitionAxis_407E558871F583877773845A032F5BA2" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleTable_F0198E8425075FDCB4EA845A032E97E6" xlink:to="loc_us-gaap_InitialApplicationPeriodCumulativeEffectTransitionAxis_407E558871F583877773845A032F5BA2" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_InitialApplicationPeriodCumulativeEffectTransitionDomain" xlink:label="loc_us-gaap_InitialApplicationPeriodCumulativeEffectTransitionDomain_C7F66B62379CEFD7435D845A032F9105" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InitialApplicationPeriodCumulativeEffectTransitionAxis_407E558871F583877773845A032F5BA2" xlink:to="loc_us-gaap_InitialApplicationPeriodCumulativeEffectTransitionDomain_C7F66B62379CEFD7435D845A032F9105" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DifferenceBetweenRevenueGuidanceInEffectBeforeAndAfterTopic606Member" xlink:label="loc_us-gaap_DifferenceBetweenRevenueGuidanceInEffectBeforeAndAfterTopic606Member_C0F69F3AF06F1327F165845A03307F81" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InitialApplicationPeriodCumulativeEffectTransitionDomain_C7F66B62379CEFD7435D845A032F9105" xlink:to="loc_us-gaap_DifferenceBetweenRevenueGuidanceInEffectBeforeAndAfterTopic606Member_C0F69F3AF06F1327F165845A03307F81" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StatementEquityComponentsAxis" xlink:label="loc_us-gaap_StatementEquityComponentsAxis_385DCBB892898D8DD972845A03305351" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleTable_F0198E8425075FDCB4EA845A032E97E6" xlink:to="loc_us-gaap_StatementEquityComponentsAxis_385DCBB892898D8DD972845A03305351" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EquityComponentDomain" xlink:label="loc_us-gaap_EquityComponentDomain_113A82EBFD436D89E4BC845A033027C5" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementEquityComponentsAxis_385DCBB892898D8DD972845A03305351" xlink:to="loc_us-gaap_EquityComponentDomain_113A82EBFD436D89E4BC845A033027C5" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RetainedEarningsMember" xlink:label="loc_us-gaap_RetainedEarningsMember_466BF4881DA07EE0CD88845A03302956" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityComponentDomain_113A82EBFD436D89E4BC845A033027C5" xlink:to="loc_us-gaap_RetainedEarningsMember_466BF4881DA07EE0CD88845A03302956" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AdjustmentsForNewAccountingPronouncementsAxis" xlink:label="loc_us-gaap_AdjustmentsForNewAccountingPronouncementsAxis_B6A5CCA564204361B56C845A0331DC41" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleTable_F0198E8425075FDCB4EA845A032E97E6" xlink:to="loc_us-gaap_AdjustmentsForNewAccountingPronouncementsAxis_B6A5CCA564204361B56C845A0331DC41" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_TypeOfAdoptionMember" xlink:label="loc_us-gaap_TypeOfAdoptionMember_036C77B7458A7CEEF028845A033188C3" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AdjustmentsForNewAccountingPronouncementsAxis_B6A5CCA564204361B56C845A0331DC41" xlink:to="loc_us-gaap_TypeOfAdoptionMember_036C77B7458A7CEEF028845A033188C3" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AccountingStandardsUpdate201609Member" xlink:label="loc_us-gaap_AccountingStandardsUpdate201609Member_AACD16DFC2B727BD50EC845A0331A24C" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_TypeOfAdoptionMember_036C77B7458A7CEEF028845A033188C3" xlink:to="loc_us-gaap_AccountingStandardsUpdate201609Member_AACD16DFC2B727BD50EC845A0331A24C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AccountingStandardsUpdate201409Member" xlink:label="loc_us-gaap_AccountingStandardsUpdate201409Member_F142DA95AD12F330DE0C845A0332728C" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_TypeOfAdoptionMember_036C77B7458A7CEEF028845A033188C3" xlink:to="loc_us-gaap_AccountingStandardsUpdate201409Member_F142DA95AD12F330DE0C845A0332728C" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180930.xsd#lqdt_AccountingStandardsUpdate201409RecognitionOfVariableCompensationMember" xlink:label="loc_lqdt_AccountingStandardsUpdate201409RecognitionOfVariableCompensationMember_6CA66DA79EF52478AD5A845A03325DED" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_TypeOfAdoptionMember_036C77B7458A7CEEF028845A033188C3" xlink:to="loc_lqdt_AccountingStandardsUpdate201409RecognitionOfVariableCompensationMember_6CA66DA79EF52478AD5A845A03325DED" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180930.xsd#lqdt_AccountingStandardsUpdate201409RecognitionOfSalesCommissionsMember" xlink:label="loc_lqdt_AccountingStandardsUpdate201409RecognitionOfSalesCommissionsMember_45585565907236986E1A845A0332EB2D" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_TypeOfAdoptionMember_036C77B7458A7CEEF028845A033188C3" xlink:to="loc_lqdt_AccountingStandardsUpdate201409RecognitionOfSalesCommissionsMember_45585565907236986E1A845A0332EB2D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleLineItems" xlink:label="loc_us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleLineItems_B079D9D532824CC017FD845A03323CE8" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleTable_F0198E8425075FDCB4EA845A032E97E6" xlink:to="loc_us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleLineItems_B079D9D532824CC017FD845A03323CE8" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption" xlink:label="loc_us-gaap_CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption_E9D0CDF0A8F1E24175C6845A0332C4DA" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleLineItems_B079D9D532824CC017FD845A03323CE8" xlink:to="loc_us-gaap_CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption_E9D0CDF0A8F1E24175C6845A0332C4DA" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ContractWithCustomerAssetGross" xlink:label="loc_us-gaap_ContractWithCustomerAssetGross_F95DF3ECAFCBCE87AB66845A033384EB" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleLineItems_B079D9D532824CC017FD845A03323CE8" xlink:to="loc_us-gaap_ContractWithCustomerAssetGross_F95DF3ECAFCBCE87AB66845A033384EB" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://liquidityservices.com/role/SummaryOfSignificantAccountingPoliciesAdvertisingCostsAndAociDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AccountingPoliciesAbstract" xlink:label="loc_us-gaap_AccountingPoliciesAbstract_F0783AD316ADF791FE63EEC262DC4F52" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeLossTable" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossTable_51A7EBE4AAFD54B25690EEC262DD4043" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_F0783AD316ADF791FE63EEC262DC4F52" xlink:to="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossTable_51A7EBE4AAFD54B25690EEC262DD4043" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StatementEquityComponentsAxis" xlink:label="loc_us-gaap_StatementEquityComponentsAxis_4ECDCC3B246DFACD6F54EEC262DD2BAB" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossTable_51A7EBE4AAFD54B25690EEC262DD4043" xlink:to="loc_us-gaap_StatementEquityComponentsAxis_4ECDCC3B246DFACD6F54EEC262DD2BAB" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EquityComponentDomain" xlink:label="loc_us-gaap_EquityComponentDomain_8CBF987DF7B00C23AE10EEC262DE54E2" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementEquityComponentsAxis_4ECDCC3B246DFACD6F54EEC262DD2BAB" xlink:to="loc_us-gaap_EquityComponentDomain_8CBF987DF7B00C23AE10EEC262DE54E2" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AccumulatedTranslationAdjustmentMember" xlink:label="loc_us-gaap_AccumulatedTranslationAdjustmentMember_D7E1DA5CFB47F4A2924DEEC262DEA243" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityComponentDomain_8CBF987DF7B00C23AE10EEC262DE54E2" xlink:to="loc_us-gaap_AccumulatedTranslationAdjustmentMember_D7E1DA5CFB47F4A2924DEEC262DEA243" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AccumulatedDefinedBenefitPlansAdjustmentMember" xlink:label="loc_us-gaap_AccumulatedDefinedBenefitPlansAdjustmentMember_1798D36535FDAEFC0AE8EEC262DE4943" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityComponentDomain_8CBF987DF7B00C23AE10EEC262DE54E2" xlink:to="loc_us-gaap_AccumulatedDefinedBenefitPlansAdjustmentMember_1798D36535FDAEFC0AE8EEC262DE4943" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeMember" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeMember_3B963AEEA1C15201EAF8EEC262DE4213" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityComponentDomain_8CBF987DF7B00C23AE10EEC262DE54E2" xlink:to="loc_us-gaap_AccumulatedOtherComprehensiveIncomeMember_3B963AEEA1C15201EAF8EEC262DE4213" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems_819A82AAA4FB4F2A22E3EEC262DF3772" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossTable_51A7EBE4AAFD54B25690EEC262DD4043" xlink:to="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems_819A82AAA4FB4F2A22E3EEC262DF3772" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTaxAbstract" xlink:label="loc_us-gaap_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTaxAbstract_4FF9DFDFF6A76B1A1819EEC262E00239" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" priority="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems_819A82AAA4FB4F2A22E3EEC262DF3772" xlink:to="loc_us-gaap_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTaxAbstract_4FF9DFDFF6A76B1A1819EEC262E00239" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AOCIAttributableToParentNetOfTaxRollForward" xlink:label="loc_us-gaap_AOCIAttributableToParentNetOfTaxRollForward_9D33A5A3450B193DA57FEEC262E0FC31" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTaxAbstract_4FF9DFDFF6A76B1A1819EEC262E00239" xlink:to="loc_us-gaap_AOCIAttributableToParentNetOfTaxRollForward_9D33A5A3450B193DA57FEEC262E0FC31" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StockholdersEquity" xlink:label="loc_us-gaap_StockholdersEquity_CEDD46B516128220988BEEC262E07EE8" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/periodStartLabel" priority="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AOCIAttributableToParentNetOfTaxRollForward_9D33A5A3450B193DA57FEEC262E0FC31" xlink:to="loc_us-gaap_StockholdersEquity_CEDD46B516128220988BEEC262E07EE8" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent_32DBD4B56DD5F1D7CA9EEEC262E10F0C" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" priority="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AOCIAttributableToParentNetOfTaxRollForward_9D33A5A3450B193DA57FEEC262E0FC31" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent_32DBD4B56DD5F1D7CA9EEEC262E10F0C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StockholdersEquity" xlink:label="loc_us-gaap_StockholdersEquity_9C8DDA42CCF937C8D105EEC262E1DBE9" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/periodEndLabel" priority="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AOCIAttributableToParentNetOfTaxRollForward_9D33A5A3450B193DA57FEEC262E0FC31" xlink:to="loc_us-gaap_StockholdersEquity_9C8DDA42CCF937C8D105EEC262E1DBE9" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_MarketingAndAdvertisingExpenseAbstract" xlink:label="loc_us-gaap_MarketingAndAdvertisingExpenseAbstract_BFB1F7F5F0DDC1323D43EEC262E1D191" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems_819A82AAA4FB4F2A22E3EEC262DF3772" xlink:to="loc_us-gaap_MarketingAndAdvertisingExpenseAbstract_BFB1F7F5F0DDC1323D43EEC262E1D191" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AdvertisingExpense" xlink:label="loc_us-gaap_AdvertisingExpense_7375FDFDB2A36F75A4BCEEC262E197D4" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_MarketingAndAdvertisingExpenseAbstract_BFB1F7F5F0DDC1323D43EEC262E1D191" xlink:to="loc_us-gaap_AdvertisingExpense_7375FDFDB2A36F75A4BCEEC262E197D4" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://liquidityservices.com/role/SummaryOfSignificantAccountingPoliciesConcentrationDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AccountingPoliciesAbstract" xlink:label="loc_us-gaap_AccountingPoliciesAbstract_A015536B831733DE29EE557A5E3C1FF4" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ConcentrationRiskTable" xlink:label="loc_us-gaap_ConcentrationRiskTable_BC7BB71744F261ECD7FD557A5E3C8F72" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_A015536B831733DE29EE557A5E3C1FF4" xlink:to="loc_us-gaap_ConcentrationRiskTable_BC7BB71744F261ECD7FD557A5E3C8F72" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RangeAxis" xlink:label="loc_us-gaap_RangeAxis_562423E0234D058E7362557A5E3D7132" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ConcentrationRiskTable_BC7BB71744F261ECD7FD557A5E3C8F72" xlink:to="loc_us-gaap_RangeAxis_562423E0234D058E7362557A5E3D7132" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RangeMember" xlink:label="loc_us-gaap_RangeMember_6E32B3C66FF73662B5A5557A5E3DC1C0" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RangeAxis_562423E0234D058E7362557A5E3D7132" xlink:to="loc_us-gaap_RangeMember_6E32B3C66FF73662B5A5557A5E3DC1C0" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_MaximumMember" xlink:label="loc_us-gaap_MaximumMember_3A503EEE4A825F55AD86557A5E3DBD07" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RangeMember_6E32B3C66FF73662B5A5557A5E3DC1C0" xlink:to="loc_us-gaap_MaximumMember_3A503EEE4A825F55AD86557A5E3DBD07" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ConcentrationRiskByTypeAxis" xlink:label="loc_us-gaap_ConcentrationRiskByTypeAxis_41F0269E186B9ED21BE9557A5E3E5DFA" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ConcentrationRiskTable_BC7BB71744F261ECD7FD557A5E3C8F72" xlink:to="loc_us-gaap_ConcentrationRiskByTypeAxis_41F0269E186B9ED21BE9557A5E3E5DFA" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ConcentrationRiskTypeDomain" xlink:label="loc_us-gaap_ConcentrationRiskTypeDomain_4B5D881727B74C8F21D2557A5E3F6ABD" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ConcentrationRiskByTypeAxis_41F0269E186B9ED21BE9557A5E3E5DFA" xlink:to="loc_us-gaap_ConcentrationRiskTypeDomain_4B5D881727B74C8F21D2557A5E3F6ABD" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_GovernmentContractsConcentrationRiskMember" xlink:label="loc_us-gaap_GovernmentContractsConcentrationRiskMember_0B340F5B6877954681AC557A5E3F20B9" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ConcentrationRiskTypeDomain_4B5D881727B74C8F21D2557A5E3F6ABD" xlink:to="loc_us-gaap_GovernmentContractsConcentrationRiskMember_0B340F5B6877954681AC557A5E3F20B9" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SupplierConcentrationRiskMember" xlink:label="loc_us-gaap_SupplierConcentrationRiskMember_46112495BCD14CD5FE5C557A5E406E41" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ConcentrationRiskTypeDomain_4B5D881727B74C8F21D2557A5E3F6ABD" xlink:to="loc_us-gaap_SupplierConcentrationRiskMember_46112495BCD14CD5FE5C557A5E406E41" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ConcentrationRiskByBenchmarkAxis" xlink:label="loc_us-gaap_ConcentrationRiskByBenchmarkAxis_2B6F5E6ADF580DB25A98557A5E401ABE" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ConcentrationRiskTable_BC7BB71744F261ECD7FD557A5E3C8F72" xlink:to="loc_us-gaap_ConcentrationRiskByBenchmarkAxis_2B6F5E6ADF580DB25A98557A5E401ABE" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ConcentrationRiskBenchmarkDomain" xlink:label="loc_us-gaap_ConcentrationRiskBenchmarkDomain_27E8957007CE4D6ADD66557A5E40C3BC" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ConcentrationRiskByBenchmarkAxis_2B6F5E6ADF580DB25A98557A5E401ABE" xlink:to="loc_us-gaap_ConcentrationRiskBenchmarkDomain_27E8957007CE4D6ADD66557A5E40C3BC" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SalesRevenueNetMember" xlink:label="loc_us-gaap_SalesRevenueNetMember_5D01D71A90FCECFFCED7557A5E4081D3" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ConcentrationRiskBenchmarkDomain_27E8957007CE4D6ADD66557A5E40C3BC" xlink:to="loc_us-gaap_SalesRevenueNetMember_5D01D71A90FCECFFCED7557A5E4081D3" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CostOfGoodsTotalMember" xlink:label="loc_us-gaap_CostOfGoodsTotalMember_58DEACCC90027638B90F557A5E418154" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ConcentrationRiskBenchmarkDomain_27E8957007CE4D6ADD66557A5E40C3BC" xlink:to="loc_us-gaap_CostOfGoodsTotalMember_58DEACCC90027638B90F557A5E418154" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_TypeOfArrangementAxis" xlink:label="loc_us-gaap_TypeOfArrangementAxis_157D9F6F8D2825540367557A5E41C2F3" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ConcentrationRiskTable_BC7BB71744F261ECD7FD557A5E3C8F72" xlink:to="loc_us-gaap_TypeOfArrangementAxis_157D9F6F8D2825540367557A5E41C2F3" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ArrangementsAndNonarrangementTransactionsMember" xlink:label="loc_us-gaap_ArrangementsAndNonarrangementTransactionsMember_298395949755FA1AB946557A5E419413" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_TypeOfArrangementAxis_157D9F6F8D2825540367557A5E41C2F3" xlink:to="loc_us-gaap_ArrangementsAndNonarrangementTransactionsMember_298395949755FA1AB946557A5E419413" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180930.xsd#lqdt_SurplusContractMember" xlink:label="loc_lqdt_SurplusContractMember_FDF5D7BD777259ADE89D557A5E412167" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ArrangementsAndNonarrangementTransactionsMember_298395949755FA1AB946557A5E419413" xlink:to="loc_lqdt_SurplusContractMember_FDF5D7BD777259ADE89D557A5E412167" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180930.xsd#lqdt_ScrapContractMember" xlink:label="loc_lqdt_ScrapContractMember_6A339CCB6273FBC28797557A5E42E8EF" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ArrangementsAndNonarrangementTransactionsMember_298395949755FA1AB946557A5E419413" xlink:to="loc_lqdt_ScrapContractMember_6A339CCB6273FBC28797557A5E42E8EF" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180930.xsd#lqdt_ContractWithCommercialClientMember" xlink:label="loc_lqdt_ContractWithCommercialClientMember_03DAFBD6637EBC8D286F557A5E42E2F1" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ArrangementsAndNonarrangementTransactionsMember_298395949755FA1AB946557A5E419413" xlink:to="loc_lqdt_ContractWithCommercialClientMember_03DAFBD6637EBC8D286F557A5E42E2F1" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ConcentrationRiskLineItems" xlink:label="loc_us-gaap_ConcentrationRiskLineItems_C48D98CB29777CD05497557A5E4362BC" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ConcentrationRiskTable_BC7BB71744F261ECD7FD557A5E3C8F72" xlink:to="loc_us-gaap_ConcentrationRiskLineItems_C48D98CB29777CD05497557A5E4362BC" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180930.xsd#lqdt_ConcentrationRiskConsignmentSalesTransactionsTermForReleaseOfFundsToSeller" xlink:label="loc_lqdt_ConcentrationRiskConsignmentSalesTransactionsTermForReleaseOfFundsToSeller_997F2904DEAD8CA5DBAD557A5E4310F8" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ConcentrationRiskLineItems_C48D98CB29777CD05497557A5E4362BC" xlink:to="loc_lqdt_ConcentrationRiskConsignmentSalesTransactionsTermForReleaseOfFundsToSeller_997F2904DEAD8CA5DBAD557A5E4310F8" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180930.xsd#lqdt_NumberOfContracts" xlink:label="loc_lqdt_NumberOfContracts_484FA3A57176AF0E9001557A5E4362C2" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ConcentrationRiskLineItems_C48D98CB29777CD05497557A5E4362BC" xlink:to="loc_lqdt_NumberOfContracts_484FA3A57176AF0E9001557A5E4362C2" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ConcentrationRiskPercentage1" xlink:label="loc_us-gaap_ConcentrationRiskPercentage1_31564E0FD41032C6171F557A5E436C1B" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ConcentrationRiskLineItems_C48D98CB29777CD05497557A5E4362BC" xlink:to="loc_us-gaap_ConcentrationRiskPercentage1_31564E0FD41032C6171F557A5E436C1B" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://liquidityservices.com/role/SummaryOfSignificantAccountingPoliciesDeferredRevenueDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AccountingPoliciesAbstract" xlink:label="loc_us-gaap_AccountingPoliciesAbstract_5EBA563CC2FEE2B703020962CA2B9E44" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RevenuePerformanceObligationDescriptionOfTiming" xlink:label="loc_us-gaap_RevenuePerformanceObligationDescriptionOfTiming_73B052891BA6E1F1C3630962CA2BAE67" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_5EBA563CC2FEE2B703020962CA2B9E44" xlink:to="loc_us-gaap_RevenuePerformanceObligationDescriptionOfTiming_73B052891BA6E1F1C3630962CA2BAE67" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://liquidityservices.com/role/SummaryOfSignificantAccountingPoliciesEarningsPerShareDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AccountingPoliciesAbstract" xlink:label="loc_us-gaap_AccountingPoliciesAbstract_503C5D86BF7CC3F151F82CCC184888DD" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfEarningsPerShareDilutedByCommonClassTable" xlink:label="loc_us-gaap_ScheduleOfEarningsPerShareDilutedByCommonClassTable_5B0683B9CF46D88897FA2CCC18486D64" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_503C5D86BF7CC3F151F82CCC184888DD" xlink:to="loc_us-gaap_ScheduleOfEarningsPerShareDilutedByCommonClassTable_5B0683B9CF46D88897FA2CCC18486D64" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AwardTypeAxis" xlink:label="loc_us-gaap_AwardTypeAxis_FB0A1E2298546D62D3992CCC1851246F" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfEarningsPerShareDilutedByCommonClassTable_5B0683B9CF46D88897FA2CCC18486D64" xlink:to="loc_us-gaap_AwardTypeAxis_FB0A1E2298546D62D3992CCC1851246F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_334D364D2FEA4BA934152CCC18521690" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AwardTypeAxis_FB0A1E2298546D62D3992CCC1851246F" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_334D364D2FEA4BA934152CCC18521690" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EmployeeStockOptionMember" xlink:label="loc_us-gaap_EmployeeStockOptionMember_46871E2D76AEC63631672CCC1852B4CB" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_334D364D2FEA4BA934152CCC18521690" xlink:to="loc_us-gaap_EmployeeStockOptionMember_46871E2D76AEC63631672CCC1852B4CB" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EarningsPerShareDilutedLineItems" xlink:label="loc_us-gaap_EarningsPerShareDilutedLineItems_C0BBC1E5912D782CBD622CCC185370C5" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfEarningsPerShareDilutedByCommonClassTable_5B0683B9CF46D88897FA2CCC18486D64" xlink:to="loc_us-gaap_EarningsPerShareDilutedLineItems_C0BBC1E5912D782CBD622CCC185370C5" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount" xlink:label="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount_252BAFBC0FD9E7C23AEA2CCC1853D396" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EarningsPerShareDilutedLineItems_C0BBC1E5912D782CBD622CCC185370C5" xlink:to="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount_252BAFBC0FD9E7C23AEA2CCC1853D396" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://liquidityservices.com/role/SummaryOfSignificantAccountingPoliciesFairValueOfFinancialInstrumentsDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AccountingPoliciesAbstract" xlink:label="loc_us-gaap_AccountingPoliciesAbstract_01AD59DB769128325A357AE2C32AF9E5" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable" xlink:label="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_BAFDA9837A26C916EC7A7AE2C32D8DCC" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_01AD59DB769128325A357AE2C32AF9E5" xlink:to="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_BAFDA9837A26C916EC7A7AE2C32D8DCC" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessAcquisitionAxis" xlink:label="loc_us-gaap_BusinessAcquisitionAxis_E289106D5054B4E0C08D7AE2C32EAFD0" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_BAFDA9837A26C916EC7A7AE2C32D8DCC" xlink:to="loc_us-gaap_BusinessAcquisitionAxis_E289106D5054B4E0C08D7AE2C32EAFD0" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessAcquisitionAcquireeDomain" xlink:label="loc_us-gaap_BusinessAcquisitionAcquireeDomain_ACE37C4397D92D3CBD877AE2C32E410C" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_BusinessAcquisitionAxis_E289106D5054B4E0C08D7AE2C32EAFD0" xlink:to="loc_us-gaap_BusinessAcquisitionAcquireeDomain_ACE37C4397D92D3CBD877AE2C32E410C" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180930.xsd#lqdt_MachinioCorporationMember" xlink:label="loc_lqdt_MachinioCorporationMember_786D516A2ED9E87A113B7AE2C32EFDAA" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_BusinessAcquisitionAcquireeDomain_ACE37C4397D92D3CBD877AE2C32E410C" xlink:to="loc_lqdt_MachinioCorporationMember_786D516A2ED9E87A113B7AE2C32EFDAA" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RangeAxis" xlink:label="loc_us-gaap_RangeAxis_5729A9CC4A61686926A77AE2C32F53C5" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_BAFDA9837A26C916EC7A7AE2C32D8DCC" xlink:to="loc_us-gaap_RangeAxis_5729A9CC4A61686926A77AE2C32F53C5" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RangeMember" xlink:label="loc_us-gaap_RangeMember_D1CB0130C5A1941BD5857AE2C32F3997" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RangeAxis_5729A9CC4A61686926A77AE2C32F53C5" xlink:to="loc_us-gaap_RangeMember_D1CB0130C5A1941BD5857AE2C32F3997" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_MinimumMember" xlink:label="loc_us-gaap_MinimumMember_A89C2BF5B6505DEEAC997AE2C3302CDF" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RangeMember_D1CB0130C5A1941BD5857AE2C32F3997" xlink:to="loc_us-gaap_MinimumMember_A89C2BF5B6505DEEAC997AE2C3302CDF" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_MaximumMember" xlink:label="loc_us-gaap_MaximumMember_92ACCDAA11DB7C601A757AE2C330B531" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RangeMember_D1CB0130C5A1941BD5857AE2C32F3997" xlink:to="loc_us-gaap_MaximumMember_92ACCDAA11DB7C601A757AE2C330B531" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessAcquisitionLineItems" xlink:label="loc_us-gaap_BusinessAcquisitionLineItems_588787B7BE678C3E1CA47AE2C33022D6" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_BAFDA9837A26C916EC7A7AE2C32D8DCC" xlink:to="loc_us-gaap_BusinessAcquisitionLineItems_588787B7BE678C3E1CA47AE2C33022D6" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180930.xsd#lqdt_ShortTermInvestmentsInterestRate" xlink:label="loc_lqdt_ShortTermInvestmentsInterestRate_8647B1D1346387395D457AE2C331D9A4" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_588787B7BE678C3E1CA47AE2C33022D6" xlink:to="loc_lqdt_ShortTermInvestmentsInterestRate_8647B1D1346387395D457AE2C331D9A4" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessCombinationContingentConsiderationArrangementsRangeOfOutcomesValueHigh" xlink:label="loc_us-gaap_BusinessCombinationContingentConsiderationArrangementsRangeOfOutcomesValueHigh_730090B2C4DA55F142A77AE2C33166BD" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_588787B7BE678C3E1CA47AE2C33022D6" xlink:to="loc_us-gaap_BusinessCombinationContingentConsiderationArrangementsRangeOfOutcomesValueHigh_730090B2C4DA55F142A77AE2C33166BD" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessCombinationConsiderationTransferredLiabilitiesIncurred" xlink:label="loc_us-gaap_BusinessCombinationConsiderationTransferredLiabilitiesIncurred_133A4070CA9382F0599E7AE2C331F027" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_588787B7BE678C3E1CA47AE2C33022D6" xlink:to="loc_us-gaap_BusinessCombinationConsiderationTransferredLiabilitiesIncurred_133A4070CA9382F0599E7AE2C331F027" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://liquidityservices.com/role/SummaryOfSignificantAccountingPoliciesIntangibleAssetsAndImpairmentOfLongLivedAssetsDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AccountingPoliciesAbstract" xlink:label="loc_us-gaap_AccountingPoliciesAbstract_C42C6DB1E6890DAB2D1B84897B41D8F0" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable" xlink:label="loc_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable_7092B3925A938E5EFF4F84897B419D2B" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_C42C6DB1E6890DAB2D1B84897B41D8F0" xlink:to="loc_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable_7092B3925A938E5EFF4F84897B419D2B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PropertyPlantAndEquipmentByTypeAxis" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_90911C6D46009D49AA1084897B42132A" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable_7092B3925A938E5EFF4F84897B419D2B" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_90911C6D46009D49AA1084897B42132A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PropertyPlantAndEquipmentTypeDomain" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_39BB84E470252817B38984897B42615D" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_90911C6D46009D49AA1084897B42132A" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_39BB84E470252817B38984897B42615D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LeaseholdImprovementsMember" xlink:label="loc_us-gaap_LeaseholdImprovementsMember_9DC6F0D0FA5C3B59CC4484897B428997" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_39BB84E470252817B38984897B42615D" xlink:to="loc_us-gaap_LeaseholdImprovementsMember_9DC6F0D0FA5C3B59CC4484897B428997" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_7426E2BB57DF9F15DF0384897B43A867" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable_7092B3925A938E5EFF4F84897B419D2B" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_7426E2BB57DF9F15DF0384897B43A867" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_D599BA491E9EDE0F12B384897B486AC4" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_7426E2BB57DF9F15DF0384897B43A867" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_D599BA491E9EDE0F12B384897B486AC4" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ContractBasedIntangibleAssetsMember" xlink:label="loc_us-gaap_ContractBasedIntangibleAssetsMember_1397278521BE44D6D6DA84897B48EF77" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_D599BA491E9EDE0F12B384897B486AC4" xlink:to="loc_us-gaap_ContractBasedIntangibleAssetsMember_1397278521BE44D6D6DA84897B48EF77" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RangeAxis" xlink:label="loc_us-gaap_RangeAxis_F54C32A378E0CE27808684897B493403" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable_7092B3925A938E5EFF4F84897B419D2B" xlink:to="loc_us-gaap_RangeAxis_F54C32A378E0CE27808684897B493403" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RangeMember" xlink:label="loc_us-gaap_RangeMember_13D454E7497D4DCE334484897B493BD2" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RangeAxis_F54C32A378E0CE27808684897B493403" xlink:to="loc_us-gaap_RangeMember_13D454E7497D4DCE334484897B493BD2" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_MinimumMember" xlink:label="loc_us-gaap_MinimumMember_40A56F7C7C86CC4C22A484897B495801" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RangeMember_13D454E7497D4DCE334484897B493BD2" xlink:to="loc_us-gaap_MinimumMember_40A56F7C7C86CC4C22A484897B495801" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_MaximumMember" xlink:label="loc_us-gaap_MaximumMember_DA5982B5DD89D6C19A5F84897B4ABF9C" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RangeMember_13D454E7497D4DCE334484897B493BD2" xlink:to="loc_us-gaap_MaximumMember_DA5982B5DD89D6C19A5F84897B4ABF9C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StatementBusinessSegmentsAxis" xlink:label="loc_us-gaap_StatementBusinessSegmentsAxis_B9CBC8FD2EBB2725240E84897B4A4D5E" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable_7092B3925A938E5EFF4F84897B419D2B" xlink:to="loc_us-gaap_StatementBusinessSegmentsAxis_B9CBC8FD2EBB2725240E84897B4A4D5E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SegmentDomain" xlink:label="loc_us-gaap_SegmentDomain_0E269E45524E71787AFA84897B4AB230" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementBusinessSegmentsAxis_B9CBC8FD2EBB2725240E84897B4A4D5E" xlink:to="loc_us-gaap_SegmentDomain_0E269E45524E71787AFA84897B4AB230" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180930.xsd#lqdt_IronDirectMember" xlink:label="loc_lqdt_IronDirectMember_5F0340E48B83E9D6133084897B4A24A0" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentDomain_0E269E45524E71787AFA84897B4AB230" xlink:to="loc_lqdt_IronDirectMember_5F0340E48B83E9D6133084897B4A24A0" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsLineItems" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_68F2B69C3079BA497B3C84897B4BB2A5" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable_7092B3925A938E5EFF4F84897B419D2B" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_68F2B69C3079BA497B3C84897B4BB2A5" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetUsefulLife" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetUsefulLife_3ACA3D0BF3E675AC1FA584897B4BA6A8" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_68F2B69C3079BA497B3C84897B4BB2A5" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetUsefulLife_3ACA3D0BF3E675AC1FA584897B4BA6A8" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ImpairmentOfLongLivedAssetsHeldForUse" xlink:label="loc_us-gaap_ImpairmentOfLongLivedAssetsHeldForUse_955F4FFE67E68EEA9AC584897B4B1F02" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_68F2B69C3079BA497B3C84897B4BB2A5" xlink:to="loc_us-gaap_ImpairmentOfLongLivedAssetsHeldForUse_955F4FFE67E68EEA9AC584897B4B1F02" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ImpairmentOfIntangibleAssetsFinitelived" xlink:label="loc_us-gaap_ImpairmentOfIntangibleAssetsFinitelived_B4DCBBED894C56B5668A84897B4B1DF4" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_68F2B69C3079BA497B3C84897B4BB2A5" xlink:to="loc_us-gaap_ImpairmentOfIntangibleAssetsFinitelived_B4DCBBED894C56B5668A84897B4B1DF4" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://liquidityservices.com/role/SummaryOfSignificantAccountingPoliciesInventoryDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AccountingPoliciesAbstract" xlink:label="loc_us-gaap_AccountingPoliciesAbstract_7640A98D66C2BA07EBCCEAFA53D3C660" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_InventoryCurrentTable" xlink:label="loc_us-gaap_InventoryCurrentTable_8CF183220FA6708BFCA9EAFA53D45218" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_7640A98D66C2BA07EBCCEAFA53D3C660" xlink:to="loc_us-gaap_InventoryCurrentTable_8CF183220FA6708BFCA9EAFA53D45218" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StatementBusinessSegmentsAxis" xlink:label="loc_us-gaap_StatementBusinessSegmentsAxis_8B4C103A8B6945C96B30EAFA53D41C2A" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InventoryCurrentTable_8CF183220FA6708BFCA9EAFA53D45218" xlink:to="loc_us-gaap_StatementBusinessSegmentsAxis_8B4C103A8B6945C96B30EAFA53D41C2A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SegmentDomain" xlink:label="loc_us-gaap_SegmentDomain_0671055EA81890A8DE31EAFA53D565D9" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementBusinessSegmentsAxis_8B4C103A8B6945C96B30EAFA53D41C2A" xlink:to="loc_us-gaap_SegmentDomain_0671055EA81890A8DE31EAFA53D565D9" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180930.xsd#lqdt_IronDirectMember" xlink:label="loc_lqdt_IronDirectMember_AA4534819751C6261B06EAFA53D5AD84" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentDomain_0671055EA81890A8DE31EAFA53D565D9" xlink:to="loc_lqdt_IronDirectMember_AA4534819751C6261B06EAFA53D5AD84" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_InventoryLineItems" xlink:label="loc_us-gaap_InventoryLineItems_0C2F1F21892670C589DAEAFA53D656C4" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InventoryCurrentTable_8CF183220FA6708BFCA9EAFA53D45218" xlink:to="loc_us-gaap_InventoryLineItems_0C2F1F21892670C589DAEAFA53D656C4" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_InventoryValuationReserves" xlink:label="loc_us-gaap_InventoryValuationReserves_6C23508D52F7452B3FAFEAFA53D63645" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InventoryLineItems_0C2F1F21892670C589DAEAFA53D656C4" xlink:to="loc_us-gaap_InventoryValuationReserves_6C23508D52F7452B3FAFEAFA53D63645" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://liquidityservices.com/role/SummaryOfSignificantAccountingPoliciesOtherAssetsDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AccountingPoliciesAbstract" xlink:label="loc_us-gaap_AccountingPoliciesAbstract_AF9DB8AE89A82E11501A2CCC1933E815" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfReceivablesWithImputedInterestTable" xlink:label="loc_us-gaap_ScheduleOfReceivablesWithImputedInterestTable_CF984D260846A5283F872CCC1938083D" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_AF9DB8AE89A82E11501A2CCC1933E815" xlink:to="loc_us-gaap_ScheduleOfReceivablesWithImputedInterestTable_CF984D260846A5283F872CCC1938083D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfReceivablesWithImputedInterestNameOfReceivableWithImputedInterestAxis" xlink:label="loc_us-gaap_ScheduleOfReceivablesWithImputedInterestNameOfReceivableWithImputedInterestAxis_9FF775915E7F82C151282CCC19381FA7" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfReceivablesWithImputedInterestTable_CF984D260846A5283F872CCC1938083D" xlink:to="loc_us-gaap_ScheduleOfReceivablesWithImputedInterestNameOfReceivableWithImputedInterestAxis_9FF775915E7F82C151282CCC19381FA7" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_NameOfReceivableWithImputedInterestDomain" xlink:label="loc_us-gaap_NameOfReceivableWithImputedInterestDomain_DAC99C452E02E24744952CCC1939D891" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfReceivablesWithImputedInterestNameOfReceivableWithImputedInterestAxis_9FF775915E7F82C151282CCC19381FA7" xlink:to="loc_us-gaap_NameOfReceivableWithImputedInterestDomain_DAC99C452E02E24744952CCC1939D891" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180930.xsd#lqdt_TanagerAcquisitionsPromissoryNoteMember" xlink:label="loc_lqdt_TanagerAcquisitionsPromissoryNoteMember_656D4C7C020F6C8558272CCC1939821F" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NameOfReceivableWithImputedInterestDomain_DAC99C452E02E24744952CCC1939D891" xlink:to="loc_lqdt_TanagerAcquisitionsPromissoryNoteMember_656D4C7C020F6C8558272CCC1939821F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BalanceSheetLocationAxis" xlink:label="loc_us-gaap_BalanceSheetLocationAxis_08FC1DB40370084957B92CCC1939C82D" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfReceivablesWithImputedInterestTable_CF984D260846A5283F872CCC1938083D" xlink:to="loc_us-gaap_BalanceSheetLocationAxis_08FC1DB40370084957B92CCC1939C82D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BalanceSheetLocationDomain" xlink:label="loc_us-gaap_BalanceSheetLocationDomain_6D886A359E75F724E5FC2CCC193AD051" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_BalanceSheetLocationAxis_08FC1DB40370084957B92CCC1939C82D" xlink:to="loc_us-gaap_BalanceSheetLocationDomain_6D886A359E75F724E5FC2CCC193AD051" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OtherAssetsMember" xlink:label="loc_us-gaap_OtherAssetsMember_E298DFEC82225287A0B12CCC193A40D1" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_BalanceSheetLocationDomain_6D886A359E75F724E5FC2CCC193AD051" xlink:to="loc_us-gaap_OtherAssetsMember_E298DFEC82225287A0B12CCC193A40D1" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PrepaidExpensesAndOtherCurrentAssetsMember" xlink:label="loc_us-gaap_PrepaidExpensesAndOtherCurrentAssetsMember_0434701D7FFB2BD25E1C2CCC193A51DF" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_BalanceSheetLocationDomain_6D886A359E75F724E5FC2CCC193AD051" xlink:to="loc_us-gaap_PrepaidExpensesAndOtherCurrentAssetsMember_0434701D7FFB2BD25E1C2CCC193A51DF" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ReceivablesWithImputedInterestLineItems" xlink:label="loc_us-gaap_ReceivablesWithImputedInterestLineItems_AD147AB727DA61E763912CCC193B5764" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfReceivablesWithImputedInterestTable_CF984D260846A5283F872CCC1938083D" xlink:to="loc_us-gaap_ReceivablesWithImputedInterestLineItems_AD147AB727DA61E763912CCC193B5764" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ReceivableWithImputedInterestFaceAmount" xlink:label="loc_us-gaap_ReceivableWithImputedInterestFaceAmount_944C6E1BAF6E4EED3D7C2CCC193C8A56" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ReceivablesWithImputedInterestLineItems_AD147AB727DA61E763912CCC193B5764" xlink:to="loc_us-gaap_ReceivableWithImputedInterestFaceAmount_944C6E1BAF6E4EED3D7C2CCC193C8A56" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180930.xsd#lqdt_ReceivableWithImputedInterestTerm" xlink:label="loc_lqdt_ReceivableWithImputedInterestTerm_22856FEF3FBF2E63C8B22CCC193C4DEB" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ReceivablesWithImputedInterestLineItems_AD147AB727DA61E763912CCC193B5764" xlink:to="loc_lqdt_ReceivableWithImputedInterestTerm_22856FEF3FBF2E63C8B22CCC193C4DEB" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ProceedsFromCollectionOfNotesReceivable" xlink:label="loc_us-gaap_ProceedsFromCollectionOfNotesReceivable_3BDE77F4C8786B7E0A942CCC193C319F" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ReceivablesWithImputedInterestLineItems_AD147AB727DA61E763912CCC193B5764" xlink:to="loc_us-gaap_ProceedsFromCollectionOfNotesReceivable_3BDE77F4C8786B7E0A942CCC193C319F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ReceivableWithImputedInterestNetAmount" xlink:label="loc_us-gaap_ReceivableWithImputedInterestNetAmount_D4CC2602FB8C65E9A1A62CCC193C04F5" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ReceivablesWithImputedInterestLineItems_AD147AB727DA61E763912CCC193B5764" xlink:to="loc_us-gaap_ReceivableWithImputedInterestNetAmount_D4CC2602FB8C65E9A1A62CCC193C04F5" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://liquidityservices.com/role/SummaryOfSignificantAccountingPoliciesPolicies" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AccountingPoliciesAbstract" xlink:label="loc_us-gaap_AccountingPoliciesAbstract_94188726513CE20FBDC50962CA64A02B" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_UseOfEstimates" xlink:label="loc_us-gaap_UseOfEstimates_8086A1A5A879789B7DB40962CA642DDA" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_94188726513CE20FBDC50962CA64A02B" xlink:to="loc_us-gaap_UseOfEstimates_8086A1A5A879789B7DB40962CA642DDA" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ConsolidationPolicyTextBlock" xlink:label="loc_us-gaap_ConsolidationPolicyTextBlock_8168D756A3DC2B2E8DCD0962CA65D503" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_94188726513CE20FBDC50962CA64A02B" xlink:to="loc_us-gaap_ConsolidationPolicyTextBlock_8168D756A3DC2B2E8DCD0962CA65D503" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessCombinationsPolicy" xlink:label="loc_us-gaap_BusinessCombinationsPolicy_3C0212309A4F2800AEA50962CA65BB03" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_94188726513CE20FBDC50962CA64A02B" xlink:to="loc_us-gaap_BusinessCombinationsPolicy_3C0212309A4F2800AEA50962CA65BB03" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CashAndCashEquivalentsPolicyTextBlock" xlink:label="loc_us-gaap_CashAndCashEquivalentsPolicyTextBlock_FF744F6083596FCC93620962CA6550DA" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_94188726513CE20FBDC50962CA64A02B" xlink:to="loc_us-gaap_CashAndCashEquivalentsPolicyTextBlock_FF744F6083596FCC93620962CA6550DA" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_InvestmentPolicyTextBlock" xlink:label="loc_us-gaap_InvestmentPolicyTextBlock_37F8D2A14BF85DD9C4B00962CA66D4C3" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_94188726513CE20FBDC50962CA64A02B" xlink:to="loc_us-gaap_InvestmentPolicyTextBlock_37F8D2A14BF85DD9C4B00962CA66D4C3" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_TradeAndOtherAccountsReceivablePolicy" xlink:label="loc_us-gaap_TradeAndOtherAccountsReceivablePolicy_EC93D70F6FF93B35814D0962CA66BE63" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_94188726513CE20FBDC50962CA64A02B" xlink:to="loc_us-gaap_TradeAndOtherAccountsReceivablePolicy_EC93D70F6FF93B35814D0962CA66BE63" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_InventoryPolicyTextBlock" xlink:label="loc_us-gaap_InventoryPolicyTextBlock_248C858CC359CC689E610962CA66E27A" xlink:type="locator" />
    <link:presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_94188726513CE20FBDC50962CA64A02B" xlink:to="loc_us-gaap_InventoryPolicyTextBlock_248C858CC359CC689E610962CA66E27A" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180930.xsd#lqdt_PrepaidExpensesAndOtherCurrentAssetsPolicyTextBlock" xlink:label="loc_lqdt_PrepaidExpensesAndOtherCurrentAssetsPolicyTextBlock_AB9FC79DE0494354D35A0962CA66E9DF" xlink:type="locator" />
    <link:presentationArc order="8" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_94188726513CE20FBDC50962CA64A02B" xlink:to="loc_lqdt_PrepaidExpensesAndOtherCurrentAssetsPolicyTextBlock_AB9FC79DE0494354D35A0962CA66E9DF" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ReceivablesPolicyTextBlock" xlink:label="loc_us-gaap_ReceivablesPolicyTextBlock_441B30933224E5A8F2AD0962CA66605D" xlink:type="locator" />
    <link:presentationArc order="9" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_94188726513CE20FBDC50962CA64A02B" xlink:to="loc_us-gaap_ReceivablesPolicyTextBlock_441B30933224E5A8F2AD0962CA66605D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PropertyPlantAndEquipmentPolicyTextBlock" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentPolicyTextBlock_74D01ADCD51FFB17AFF50962CA67CDC8" xlink:type="locator" />
    <link:presentationArc order="10" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_94188726513CE20FBDC50962CA64A02B" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentPolicyTextBlock_74D01ADCD51FFB17AFF50962CA67CDC8" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IntangibleAssetsFiniteLivedPolicy" xlink:label="loc_us-gaap_IntangibleAssetsFiniteLivedPolicy_18DD71A282A54BA230A90962CA67AF90" xlink:type="locator" />
    <link:presentationArc order="11" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_94188726513CE20FBDC50962CA64A02B" xlink:to="loc_us-gaap_IntangibleAssetsFiniteLivedPolicy_18DD71A282A54BA230A90962CA67AF90" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180930.xsd#lqdt_ImpairmentOrDisposalOfLongLivedAssetsIncludingIntangibleAssetsButExcludingGoodwillPolicyTextBlock" xlink:label="loc_lqdt_ImpairmentOrDisposalOfLongLivedAssetsIncludingIntangibleAssetsButExcludingGoodwillPolicyTextBlock_19186BD0AE3838D959AE0962CA679E7D" xlink:type="locator" />
    <link:presentationArc order="12" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_94188726513CE20FBDC50962CA64A02B" xlink:to="loc_lqdt_ImpairmentOrDisposalOfLongLivedAssetsIncludingIntangibleAssetsButExcludingGoodwillPolicyTextBlock_19186BD0AE3838D959AE0962CA679E7D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_GoodwillAndIntangibleAssetsGoodwillPolicy" xlink:label="loc_us-gaap_GoodwillAndIntangibleAssetsGoodwillPolicy_2A107F29B86D9960C0960962CA678AF4" xlink:type="locator" />
    <link:presentationArc order="13" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_94188726513CE20FBDC50962CA64A02B" xlink:to="loc_us-gaap_GoodwillAndIntangibleAssetsGoodwillPolicy_2A107F29B86D9960C0960962CA678AF4" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RevenueRecognitionPolicyTextBlock" xlink:label="loc_us-gaap_RevenueRecognitionPolicyTextBlock_CF0C1D6E4BF8FD3540F00962CA672562" xlink:type="locator" />
    <link:presentationArc order="14" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_94188726513CE20FBDC50962CA64A02B" xlink:to="loc_us-gaap_RevenueRecognitionPolicyTextBlock_CF0C1D6E4BF8FD3540F00962CA672562" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CostOfSalesPolicyTextBlock" xlink:label="loc_us-gaap_CostOfSalesPolicyTextBlock_A3FD676A2DA1C2EF35530962CA68CA7A" xlink:type="locator" />
    <link:presentationArc order="15" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_94188726513CE20FBDC50962CA64A02B" xlink:to="loc_us-gaap_CostOfSalesPolicyTextBlock_A3FD676A2DA1C2EF35530962CA68CA7A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ConcentrationRiskCreditRisk" xlink:label="loc_us-gaap_ConcentrationRiskCreditRisk_F16858F132E2B2F38ADE0962CA687167" xlink:type="locator" />
    <link:presentationArc order="16" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_94188726513CE20FBDC50962CA64A02B" xlink:to="loc_us-gaap_ConcentrationRiskCreditRisk_F16858F132E2B2F38ADE0962CA687167" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeTaxPolicyTextBlock" xlink:label="loc_us-gaap_IncomeTaxPolicyTextBlock_E9600C7B02B3EC59BCD70962CA68653D" xlink:type="locator" />
    <link:presentationArc order="17" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_94188726513CE20FBDC50962CA64A02B" xlink:to="loc_us-gaap_IncomeTaxPolicyTextBlock_E9600C7B02B3EC59BCD70962CA68653D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationOptionAndIncentivePlansPolicy" xlink:label="loc_us-gaap_ShareBasedCompensationOptionAndIncentivePlansPolicy_1EE40DDABA16BF05461F0962CA6817C7" xlink:type="locator" />
    <link:presentationArc order="18" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_94188726513CE20FBDC50962CA64A02B" xlink:to="loc_us-gaap_ShareBasedCompensationOptionAndIncentivePlansPolicy_1EE40DDABA16BF05461F0962CA6817C7" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AdvertisingCostsPolicyTextBlock" xlink:label="loc_us-gaap_AdvertisingCostsPolicyTextBlock_89648B90198CD3686E1F0962CA69F960" xlink:type="locator" />
    <link:presentationArc order="19" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_94188726513CE20FBDC50962CA64A02B" xlink:to="loc_us-gaap_AdvertisingCostsPolicyTextBlock_89648B90198CD3686E1F0962CA69F960" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FairValueOfFinancialInstrumentsPolicy" xlink:label="loc_us-gaap_FairValueOfFinancialInstrumentsPolicy_B5CBEF66B8E15F1126240962CA69C671" xlink:type="locator" />
    <link:presentationArc order="20" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_94188726513CE20FBDC50962CA64A02B" xlink:to="loc_us-gaap_FairValueOfFinancialInstrumentsPolicy_B5CBEF66B8E15F1126240962CA69C671" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ForeignCurrencyTransactionsAndTranslationsPolicyTextBlock" xlink:label="loc_us-gaap_ForeignCurrencyTransactionsAndTranslationsPolicyTextBlock_C51E1BCDE4585A5D32720962CA69F18E" xlink:type="locator" />
    <link:presentationArc order="21" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_94188726513CE20FBDC50962CA64A02B" xlink:to="loc_us-gaap_ForeignCurrencyTransactionsAndTranslationsPolicyTextBlock_C51E1BCDE4585A5D32720962CA69F18E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ComprehensiveIncomePolicyPolicyTextBlock" xlink:label="loc_us-gaap_ComprehensiveIncomePolicyPolicyTextBlock_3506DB19F1B1EC26B67B0962CA699ABF" xlink:type="locator" />
    <link:presentationArc order="22" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_94188726513CE20FBDC50962CA64A02B" xlink:to="loc_us-gaap_ComprehensiveIncomePolicyPolicyTextBlock_3506DB19F1B1EC26B67B0962CA699ABF" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EarningsPerSharePolicyTextBlock" xlink:label="loc_us-gaap_EarningsPerSharePolicyTextBlock_E13E77FC787FF49A432B0962CA692D71" xlink:type="locator" />
    <link:presentationArc order="23" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_94188726513CE20FBDC50962CA64A02B" xlink:to="loc_us-gaap_EarningsPerSharePolicyTextBlock_E13E77FC787FF49A432B0962CA692D71" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock" xlink:label="loc_us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock_01AA0A1A33DBC889AA640962CA6A1128" xlink:type="locator" />
    <link:presentationArc order="24" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_94188726513CE20FBDC50962CA64A02B" xlink:to="loc_us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock_01AA0A1A33DBC889AA640962CA6A1128" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://liquidityservices.com/role/SummaryOfSignificantAccountingPoliciesPpeDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AccountingPoliciesAbstract" xlink:label="loc_us-gaap_AccountingPoliciesAbstract_D7CBE1722CF9D3930EEE86E5D8B58F1C" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfPropertyPlantAndEquipmentTable" xlink:label="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_AA778DEB6E4EE5DB5BDD86E5D8B621B0" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_D7CBE1722CF9D3930EEE86E5D8B58F1C" xlink:to="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_AA778DEB6E4EE5DB5BDD86E5D8B621B0" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PropertyPlantAndEquipmentByTypeAxis" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_6BD3E1DA9AEC41EC4E9386E5D8B7300B" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_AA778DEB6E4EE5DB5BDD86E5D8B621B0" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_6BD3E1DA9AEC41EC4E9386E5D8B7300B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PropertyPlantAndEquipmentTypeDomain" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_E86198A81C68B797A31486E5D8B7B0FD" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_6BD3E1DA9AEC41EC4E9386E5D8B7300B" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_E86198A81C68B797A31486E5D8B7B0FD" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180930.xsd#lqdt_ComputersAndSoftwareMember" xlink:label="loc_lqdt_ComputersAndSoftwareMember_6DE5CFF124F5ABA1512686E5D8B771E4" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_E86198A81C68B797A31486E5D8B7B0FD" xlink:to="loc_lqdt_ComputersAndSoftwareMember_6DE5CFF124F5ABA1512686E5D8B771E4" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OfficeEquipmentMember" xlink:label="loc_us-gaap_OfficeEquipmentMember_C79584E8A9AA0E976CEE86E5D8B73D99" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_E86198A81C68B797A31486E5D8B7B0FD" xlink:to="loc_us-gaap_OfficeEquipmentMember_C79584E8A9AA0E976CEE86E5D8B73D99" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FurnitureAndFixturesMember" xlink:label="loc_us-gaap_FurnitureAndFixturesMember_B7EF5A792E620045D8F086E5D8B81850" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_E86198A81C68B797A31486E5D8B7B0FD" xlink:to="loc_us-gaap_FurnitureAndFixturesMember_B7EF5A792E620045D8F086E5D8B81850" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SoftwareAndSoftwareDevelopmentCostsMember" xlink:label="loc_us-gaap_SoftwareAndSoftwareDevelopmentCostsMember_1CC5D4985C026E9543CC86E5D8B82DE2" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_E86198A81C68B797A31486E5D8B7B0FD" xlink:to="loc_us-gaap_SoftwareAndSoftwareDevelopmentCostsMember_1CC5D4985C026E9543CC86E5D8B82DE2" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BuildingMember" xlink:label="loc_us-gaap_BuildingMember_D941FFE93382565897F086E5D8B82E0C" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_E86198A81C68B797A31486E5D8B7B0FD" xlink:to="loc_us-gaap_BuildingMember_D941FFE93382565897F086E5D8B82E0C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RangeAxis" xlink:label="loc_us-gaap_RangeAxis_82CA7F55EDF6D49B34C686E5D8B969AE" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_AA778DEB6E4EE5DB5BDD86E5D8B621B0" xlink:to="loc_us-gaap_RangeAxis_82CA7F55EDF6D49B34C686E5D8B969AE" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RangeMember" xlink:label="loc_us-gaap_RangeMember_C92F6E1E83B89D3E62DE86E5D8B96A7A" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RangeAxis_82CA7F55EDF6D49B34C686E5D8B969AE" xlink:to="loc_us-gaap_RangeMember_C92F6E1E83B89D3E62DE86E5D8B96A7A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_MinimumMember" xlink:label="loc_us-gaap_MinimumMember_047C80855BB23028155486E5D8B94566" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RangeMember_C92F6E1E83B89D3E62DE86E5D8B96A7A" xlink:to="loc_us-gaap_MinimumMember_047C80855BB23028155486E5D8B94566" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_MaximumMember" xlink:label="loc_us-gaap_MaximumMember_DC1740A11EDB2BAE4CF686E5D8B9CBBE" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RangeMember_C92F6E1E83B89D3E62DE86E5D8B96A7A" xlink:to="loc_us-gaap_MaximumMember_DC1740A11EDB2BAE4CF686E5D8B9CBBE" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PropertyPlantAndEquipmentLineItems" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentLineItems_32C9850A247096B726C586E5D8BA1131" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_AA778DEB6E4EE5DB5BDD86E5D8B621B0" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentLineItems_32C9850A247096B726C586E5D8BA1131" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PropertyPlantAndEquipmentUsefulLife" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentUsefulLife_297DFC4FDA82BC469F0186E5D8BAFDCC" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_32C9850A247096B726C586E5D8BA1131" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentUsefulLife_297DFC4FDA82BC469F0186E5D8BAFDCC" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://liquidityservices.com/role/SummaryOfSignificantAccountingPoliciesShortTermInvestmentsDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AccountingPoliciesAbstract" xlink:label="loc_us-gaap_AccountingPoliciesAbstract_EE528C19F871372D37C87AE2BF10FC42" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfShortTermDebtTable" xlink:label="loc_us-gaap_ScheduleOfShortTermDebtTable_11F47361637509BA08427AE2BF113D35" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_EE528C19F871372D37C87AE2BF10FC42" xlink:to="loc_us-gaap_ScheduleOfShortTermDebtTable_11F47361637509BA08427AE2BF113D35" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RangeAxis" xlink:label="loc_us-gaap_RangeAxis_E38E87061102B3D366497AE2BF112AF7" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfShortTermDebtTable_11F47361637509BA08427AE2BF113D35" xlink:to="loc_us-gaap_RangeAxis_E38E87061102B3D366497AE2BF112AF7" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RangeMember" xlink:label="loc_us-gaap_RangeMember_40F05ACB7459F277231D7AE2BF1110F0" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RangeAxis_E38E87061102B3D366497AE2BF112AF7" xlink:to="loc_us-gaap_RangeMember_40F05ACB7459F277231D7AE2BF1110F0" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_MinimumMember" xlink:label="loc_us-gaap_MinimumMember_A6A3DA60E904B975C3337AE2BF11135B" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RangeMember_40F05ACB7459F277231D7AE2BF1110F0" xlink:to="loc_us-gaap_MinimumMember_A6A3DA60E904B975C3337AE2BF11135B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_MaximumMember" xlink:label="loc_us-gaap_MaximumMember_A12EBF4EE7D969BD9F717AE2BF128DC2" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RangeMember_40F05ACB7459F277231D7AE2BF1110F0" xlink:to="loc_us-gaap_MaximumMember_A12EBF4EE7D969BD9F717AE2BF128DC2" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShortTermDebtLineItems" xlink:label="loc_us-gaap_ShortTermDebtLineItems_AF5867792118CDF0A07A7AE2BF129D6B" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfShortTermDebtTable_11F47361637509BA08427AE2BF113D35" xlink:to="loc_us-gaap_ShortTermDebtLineItems_AF5867792118CDF0A07A7AE2BF129D6B" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180930.xsd#lqdt_ShortTermInvestmentsInterestRate" xlink:label="loc_lqdt_ShortTermInvestmentsInterestRate_313F6008E913428817BB7AE2BF12D36C" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShortTermDebtLineItems_AF5867792118CDF0A07A7AE2BF129D6B" xlink:to="loc_lqdt_ShortTermInvestmentsInterestRate_313F6008E913428817BB7AE2BF12D36C" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://liquidityservices.com/role/SummaryOfSignificantAccountingPoliciesStockBasedCompensationDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AccountingPoliciesAbstract" xlink:label="loc_us-gaap_AccountingPoliciesAbstract_C0DC315EA6DB7DEADA93845A035BD6A3" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleTable" xlink:label="loc_us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleTable_87F9338060CC1995B163845A035CF5BB" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_C0DC315EA6DB7DEADA93845A035BD6A3" xlink:to="loc_us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleTable_87F9338060CC1995B163845A035CF5BB" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RangeAxis" xlink:label="loc_us-gaap_RangeAxis_F66C159172CF43696188845A035CB67B" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleTable_87F9338060CC1995B163845A035CF5BB" xlink:to="loc_us-gaap_RangeAxis_F66C159172CF43696188845A035CB67B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RangeMember" xlink:label="loc_us-gaap_RangeMember_DAF741B4A29BE835D98F845A035CEC80" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RangeAxis_F66C159172CF43696188845A035CB67B" xlink:to="loc_us-gaap_RangeMember_DAF741B4A29BE835D98F845A035CEC80" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_MinimumMember" xlink:label="loc_us-gaap_MinimumMember_BED89A875196AA6A26F8845A035C3690" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RangeMember_DAF741B4A29BE835D98F845A035CEC80" xlink:to="loc_us-gaap_MinimumMember_BED89A875196AA6A26F8845A035C3690" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_MaximumMember" xlink:label="loc_us-gaap_MaximumMember_70D04A0F12550B036EFE845A035D153B" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RangeMember_DAF741B4A29BE835D98F845A035CEC80" xlink:to="loc_us-gaap_MaximumMember_70D04A0F12550B036EFE845A035D153B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StatementEquityComponentsAxis" xlink:label="loc_us-gaap_StatementEquityComponentsAxis_AC8AF8DC4D37E0AACB76845A035D78E5" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleTable_87F9338060CC1995B163845A035CF5BB" xlink:to="loc_us-gaap_StatementEquityComponentsAxis_AC8AF8DC4D37E0AACB76845A035D78E5" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EquityComponentDomain" xlink:label="loc_us-gaap_EquityComponentDomain_BEB750114CB9756396E1845A035D6BB0" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementEquityComponentsAxis_AC8AF8DC4D37E0AACB76845A035D78E5" xlink:to="loc_us-gaap_EquityComponentDomain_BEB750114CB9756396E1845A035D6BB0" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RetainedEarningsMember" xlink:label="loc_us-gaap_RetainedEarningsMember_5FEAF5341AE4D7111C9D845A035E5E48" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityComponentDomain_BEB750114CB9756396E1845A035D6BB0" xlink:to="loc_us-gaap_RetainedEarningsMember_5FEAF5341AE4D7111C9D845A035E5E48" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AdjustmentsForNewAccountingPronouncementsAxis" xlink:label="loc_us-gaap_AdjustmentsForNewAccountingPronouncementsAxis_D7D50F569FBB29A06C2F845A035E7CD7" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleTable_87F9338060CC1995B163845A035CF5BB" xlink:to="loc_us-gaap_AdjustmentsForNewAccountingPronouncementsAxis_D7D50F569FBB29A06C2F845A035E7CD7" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_TypeOfAdoptionMember" xlink:label="loc_us-gaap_TypeOfAdoptionMember_545FE48ED33BC4B245C2845A035E4052" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AdjustmentsForNewAccountingPronouncementsAxis_D7D50F569FBB29A06C2F845A035E7CD7" xlink:to="loc_us-gaap_TypeOfAdoptionMember_545FE48ED33BC4B245C2845A035E4052" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AccountingStandardsUpdate201609Member" xlink:label="loc_us-gaap_AccountingStandardsUpdate201609Member_EADA8E0D6094CC1C4271845A035ED6E3" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_TypeOfAdoptionMember_545FE48ED33BC4B245C2845A035E4052" xlink:to="loc_us-gaap_AccountingStandardsUpdate201609Member_EADA8E0D6094CC1C4271845A035ED6E3" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleLineItems" xlink:label="loc_us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleLineItems_4B44DCF4BBFED5B37125845A035F36D4" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleTable_87F9338060CC1995B163845A035CF5BB" xlink:to="loc_us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleLineItems_4B44DCF4BBFED5B37125845A035F36D4" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1_F389CDD40AE64065EFDC845A035FA6BC" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleLineItems_4B44DCF4BBFED5B37125845A035F36D4" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1_F389CDD40AE64065EFDC845A035FA6BC" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption" xlink:label="loc_us-gaap_CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption_52317F4B71D8EB45E5A2845A035F7A22" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleLineItems_4B44DCF4BBFED5B37125845A035F36D4" xlink:to="loc_us-gaap_CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption_52317F4B71D8EB45E5A2845A035F7A22" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://liquidityservices.com/role/SummaryOfSignificantAccountingPoliciesTables" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AccountingPoliciesAbstract" xlink:label="loc_us-gaap_AccountingPoliciesAbstract_85763E61462B978880F984B85EF29145" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PropertyPlantAndEquipmentTextBlock" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentTextBlock_499A632A310B18338D0984B85EF3514F" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_85763E61462B978880F984B85EF29145" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentTextBlock_499A632A310B18338D0984B85EF3514F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfAccumulatedOtherComprehensiveIncomeLossTableTextBlock" xlink:label="loc_us-gaap_ScheduleOfAccumulatedOtherComprehensiveIncomeLossTableTextBlock_212B52217F8884C34DEA84B85EF3906E" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_85763E61462B978880F984B85EF29145" xlink:to="loc_us-gaap_ScheduleOfAccumulatedOtherComprehensiveIncomeLossTableTextBlock_212B52217F8884C34DEA84B85EF3906E" xlink:type="arc" />
  </link:presentationLink>
</link:linkbase>





