

<!--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://www.liquidityservices.com/role/BusinessRealignmentExpenses" xlink:href="lqdt-20180630.xsd#BusinessRealignmentExpenses" xlink:type="simple" />
  <link:roleRef roleURI="http://www.liquidityservices.com/role/BusinessRealignmentExpensesNarrativeDetails" xlink:href="lqdt-20180630.xsd#BusinessRealignmentExpensesNarrativeDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.liquidityservices.com/role/BusinessRealignmentExpensesRestructuringRelatedCostsDetails" xlink:href="lqdt-20180630.xsd#BusinessRealignmentExpensesRestructuringRelatedCostsDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.liquidityservices.com/role/BusinessRealignmentExpensesTables" xlink:href="lqdt-20180630.xsd#BusinessRealignmentExpensesTables" xlink:type="simple" />
  <link:roleRef roleURI="http://www.liquidityservices.com/role/ConsolidatedBalanceSheets" xlink:href="lqdt-20180630.xsd#ConsolidatedBalanceSheets" xlink:type="simple" />
  <link:roleRef roleURI="http://www.liquidityservices.com/role/ConsolidatedBalanceSheetsParenthetical" xlink:href="lqdt-20180630.xsd#ConsolidatedBalanceSheetsParenthetical" xlink:type="simple" />
  <link:roleRef roleURI="http://www.liquidityservices.com/role/DefinedBenefitPensionPlan" xlink:href="lqdt-20180630.xsd#DefinedBenefitPensionPlan" xlink:type="simple" />
  <link:roleRef roleURI="http://www.liquidityservices.com/role/DefinedBenefitPensionPlanNetPeriodicBenefitDetails" xlink:href="lqdt-20180630.xsd#DefinedBenefitPensionPlanNetPeriodicBenefitDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.liquidityservices.com/role/DefinedBenefitPensionPlanTables" xlink:href="lqdt-20180630.xsd#DefinedBenefitPensionPlanTables" xlink:type="simple" />
  <link:roleRef roleURI="http://www.liquidityservices.com/role/DocumentAndEntityInformation" xlink:href="lqdt-20180630.xsd#DocumentAndEntityInformation" xlink:type="simple" />
  <link:roleRef roleURI="http://www.liquidityservices.com/role/FairValueMeasurement" xlink:href="lqdt-20180630.xsd#FairValueMeasurement" xlink:type="simple" />
  <link:roleRef roleURI="http://www.liquidityservices.com/role/FairValueMeasurementChangeInLevel3AssetsDetails" xlink:href="lqdt-20180630.xsd#FairValueMeasurementChangeInLevel3AssetsDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.liquidityservices.com/role/FairValueMeasurementNarrativeDetails" xlink:href="lqdt-20180630.xsd#FairValueMeasurementNarrativeDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.liquidityservices.com/role/FairValueMeasurementTables" xlink:href="lqdt-20180630.xsd#FairValueMeasurementTables" xlink:type="simple" />
  <link:roleRef roleURI="http://www.liquidityservices.com/role/Goodwill" xlink:href="lqdt-20180630.xsd#Goodwill" xlink:type="simple" />
  <link:roleRef roleURI="http://www.liquidityservices.com/role/GoodwillAdjustmentsDetails" xlink:href="lqdt-20180630.xsd#GoodwillAdjustmentsDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.liquidityservices.com/role/GoodwillTables" xlink:href="lqdt-20180630.xsd#GoodwillTables" xlink:type="simple" />
  <link:roleRef roleURI="http://www.liquidityservices.com/role/Guarantees" xlink:href="lqdt-20180630.xsd#Guarantees" xlink:type="simple" />
  <link:roleRef roleURI="http://www.liquidityservices.com/role/GuaranteesNarrativeDetails" xlink:href="lqdt-20180630.xsd#GuaranteesNarrativeDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.liquidityservices.com/role/IncomeTaxes" xlink:href="lqdt-20180630.xsd#IncomeTaxes" xlink:type="simple" />
  <link:roleRef roleURI="http://www.liquidityservices.com/role/IncomeTaxesNarrativeDetails" xlink:href="lqdt-20180630.xsd#IncomeTaxesNarrativeDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.liquidityservices.com/role/IntangibleAssets" xlink:href="lqdt-20180630.xsd#IntangibleAssets" xlink:type="simple" />
  <link:roleRef roleURI="http://www.liquidityservices.com/role/IntangibleAssetsAmortizationDetails" xlink:href="lqdt-20180630.xsd#IntangibleAssetsAmortizationDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.liquidityservices.com/role/IntangibleAssetsCarryingAmountDetails" xlink:href="lqdt-20180630.xsd#IntangibleAssetsCarryingAmountDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.liquidityservices.com/role/IntangibleAssetsNarrativeDetails" xlink:href="lqdt-20180630.xsd#IntangibleAssetsNarrativeDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.liquidityservices.com/role/IntangibleAssetsTables" xlink:href="lqdt-20180630.xsd#IntangibleAssetsTables" xlink:type="simple" />
  <link:roleRef roleURI="http://www.liquidityservices.com/role/LegalProceedings" xlink:href="lqdt-20180630.xsd#LegalProceedings" xlink:type="simple" />
  <link:roleRef roleURI="http://www.liquidityservices.com/role/LegalProceedingsNarrativeDetails" xlink:href="lqdt-20180630.xsd#LegalProceedingsNarrativeDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.liquidityservices.com/role/Organization" xlink:href="lqdt-20180630.xsd#Organization" xlink:type="simple" />
  <link:roleRef roleURI="http://www.liquidityservices.com/role/OrganizationNarrativeDetails" xlink:href="lqdt-20180630.xsd#OrganizationNarrativeDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.liquidityservices.com/role/SegmentInformation" xlink:href="lqdt-20180630.xsd#SegmentInformation" xlink:type="simple" />
  <link:roleRef roleURI="http://www.liquidityservices.com/role/SegmentInformationNarrativeDetails" xlink:href="lqdt-20180630.xsd#SegmentInformationNarrativeDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.liquidityservices.com/role/SegmentInformationReconciliationOfRevenueDetails" xlink:href="lqdt-20180630.xsd#SegmentInformationReconciliationOfRevenueDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.liquidityservices.com/role/SegmentInformationTables" xlink:href="lqdt-20180630.xsd#SegmentInformationTables" xlink:type="simple" />
  <link:roleRef roleURI="http://www.liquidityservices.com/role/SignificantContracts" xlink:href="lqdt-20180630.xsd#SignificantContracts" xlink:type="simple" />
  <link:roleRef roleURI="http://www.liquidityservices.com/role/SignificantContractsNarrativeDetails" xlink:href="lqdt-20180630.xsd#SignificantContractsNarrativeDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.liquidityservices.com/role/StockholdersEquity" xlink:href="lqdt-20180630.xsd#StockholdersEquity" xlink:type="simple" />
  <link:roleRef roleURI="http://www.liquidityservices.com/role/StockholdersEquity2006PlanActivityDetails" xlink:href="lqdt-20180630.xsd#StockholdersEquity2006PlanActivityDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.liquidityservices.com/role/StockholdersEquityNarrativeDetails" xlink:href="lqdt-20180630.xsd#StockholdersEquityNarrativeDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.liquidityservices.com/role/StockholdersEquityRestrictedShareActivityDetails" xlink:href="lqdt-20180630.xsd#StockholdersEquityRestrictedShareActivityDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.liquidityservices.com/role/StockholdersEquityTables" xlink:href="lqdt-20180630.xsd#StockholdersEquityTables" xlink:type="simple" />
  <link:roleRef roleURI="http://www.liquidityservices.com/role/SubsequentEvent" xlink:href="lqdt-20180630.xsd#SubsequentEvent" xlink:type="simple" />
  <link:roleRef roleURI="http://www.liquidityservices.com/role/SubsequentEventNarrativeDetails" xlink:href="lqdt-20180630.xsd#SubsequentEventNarrativeDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.liquidityservices.com/role/SummaryOfSignificantAccountingPolicies" xlink:href="lqdt-20180630.xsd#SummaryOfSignificantAccountingPolicies" xlink:type="simple" />
  <link:roleRef roleURI="http://www.liquidityservices.com/role/SummaryOfSignificantAccountingPoliciesEarningsPerShareDetails" xlink:href="lqdt-20180630.xsd#SummaryOfSignificantAccountingPoliciesEarningsPerShareDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.liquidityservices.com/role/SummaryOfSignificantAccountingPoliciesNarrativeDetails" xlink:href="lqdt-20180630.xsd#SummaryOfSignificantAccountingPoliciesNarrativeDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.liquidityservices.com/role/SummaryOfSignificantAccountingPoliciesPolicies" xlink:href="lqdt-20180630.xsd#SummaryOfSignificantAccountingPoliciesPolicies" xlink:type="simple" />
  <link:roleRef roleURI="http://www.liquidityservices.com/role/SummaryOfSignificantAccountingPoliciesTables" xlink:href="lqdt-20180630.xsd#SummaryOfSignificantAccountingPoliciesTables" xlink:type="simple" />
  <link:roleRef roleURI="http://www.liquidityservices.com/role/UnauditedConsolidatedStatementsOfCashFlows" xlink:href="lqdt-20180630.xsd#UnauditedConsolidatedStatementsOfCashFlows" xlink:type="simple" />
  <link:roleRef roleURI="http://www.liquidityservices.com/role/UnauditedConsolidatedStatementsOfComprehensiveLoss" xlink:href="lqdt-20180630.xsd#UnauditedConsolidatedStatementsOfComprehensiveLoss" xlink:type="simple" />
  <link:roleRef roleURI="http://www.liquidityservices.com/role/UnauditedConsolidatedStatementsOfOperations" xlink:href="lqdt-20180630.xsd#UnauditedConsolidatedStatementsOfOperations" 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://www.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_A4A809D3CF4883BC16CB23120C8ACB01" 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_08E009078013AF1EBE0023120C8AD18B" xlink:type="locator" />
    <link:presentationArc order="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_A4A809D3CF4883BC16CB23120C8ACB01" xlink:to="loc_us-gaap_RestructuringAndRelatedActivitiesDisclosureTextBlock_08E009078013AF1EBE0023120C8AD18B" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.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_4DEC03587E8C2DAAA155B989E8D22B9A" 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_68A49DF31AA0ACFDDE5BB989E8D3FD4C" xlink:type="locator" />
    <link:presentationArc order="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_4DEC03587E8C2DAAA155B989E8D22B9A" xlink:to="loc_us-gaap_ScheduleOfRestructuringAndRelatedCostsTable_68A49DF31AA0ACFDDE5BB989E8D3FD4C" 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_621815A04B68F05BD4E1B989E8D3A3D7" xlink:type="locator" />
    <link:presentationArc order="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_68A49DF31AA0ACFDDE5BB989E8D3FD4C" xlink:to="loc_us-gaap_StatementBusinessSegmentsAxis_621815A04B68F05BD4E1B989E8D3A3D7" 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_FD1D88C21D9A51158348B989E8D3A7CA" xlink:type="locator" />
    <link:presentationArc order="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_621815A04B68F05BD4E1B989E8D3A3D7" xlink:to="loc_us-gaap_SegmentDomain_FD1D88C21D9A51158348B989E8D3A7CA" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180630.xsd#lqdt_CAGMember" xlink:label="loc_lqdt_CAGMember_E0C405AE9C74DED69666B989E8D3F6FC" xlink:type="locator" />
    <link:presentationArc order="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_FD1D88C21D9A51158348B989E8D3A7CA" xlink:to="loc_lqdt_CAGMember_E0C405AE9C74DED69666B989E8D3F6FC" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180630.xsd#lqdt_IronDirectMember" xlink:label="loc_lqdt_IronDirectMember_C7A48328404FBB3EC065B989E8D4327B" 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_FD1D88C21D9A51158348B989E8D3A7CA" xlink:to="loc_lqdt_IronDirectMember_C7A48328404FBB3EC065B989E8D4327B" 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_D4D07AA5E22CF30A3FA8B989E8D42EDA" 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_68A49DF31AA0ACFDDE5BB989E8D3FD4C" xlink:to="loc_us-gaap_RestructuringCostAndReserveAxis_D4D07AA5E22CF30A3FA8B989E8D42EDA" 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_31D07128F4802AEB8D21B989E8D4316E" xlink:type="locator" />
    <link:presentationArc order="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_D4D07AA5E22CF30A3FA8B989E8D42EDA" xlink:to="loc_us-gaap_TypeOfRestructuringDomain_31D07128F4802AEB8D21B989E8D4316E" 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_1C624DC99375323F2BBFB989E8D42690" 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_31D07128F4802AEB8D21B989E8D4316E" xlink:to="loc_us-gaap_EmployeeSeveranceMember_1C624DC99375323F2BBFB989E8D42690" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180630.xsd#lqdt_LegalandAdministrativeCostsMember" xlink:label="loc_lqdt_LegalandAdministrativeCostsMember_350BC9DA260159986194B989E8D5BA57" 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_31D07128F4802AEB8D21B989E8D4316E" xlink:to="loc_lqdt_LegalandAdministrativeCostsMember_350BC9DA260159986194B989E8D5BA57" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180630.xsd#lqdt_OccupancyAndContractCostsMember" xlink:label="loc_lqdt_OccupancyAndContractCostsMember_B94D95FADA3AEB78949FB989E8D528E9" 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_31D07128F4802AEB8D21B989E8D4316E" xlink:to="loc_lqdt_OccupancyAndContractCostsMember_B94D95FADA3AEB78949FB989E8D528E9" 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_FA0C08D53501DDD433A8B989E8D5035C" 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_31D07128F4802AEB8D21B989E8D4316E" xlink:to="loc_us-gaap_GeneralAndAdministrativeExpenseMember_FA0C08D53501DDD433A8B989E8D5035C" 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_908FAC7E0FDFBDFC4B39B989E8D53806" 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_31D07128F4802AEB8D21B989E8D4316E" xlink:to="loc_us-gaap_SellingAndMarketingExpenseMember_908FAC7E0FDFBDFC4B39B989E8D53806" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180630.xsd#lqdt_TechnologyandOperationsMember" xlink:label="loc_lqdt_TechnologyandOperationsMember_59E008F021A92B0295F5B989E8D52B17" 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_31D07128F4802AEB8D21B989E8D4316E" xlink:to="loc_lqdt_TechnologyandOperationsMember_59E008F021A92B0295F5B989E8D52B17" 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_8036EEB4A021F1AB2D08B989E8D5C0C0" 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_ScheduleOfRestructuringAndRelatedCostsTable_68A49DF31AA0ACFDDE5BB989E8D3FD4C" xlink:to="loc_us-gaap_RestructuringPlanAxis_8036EEB4A021F1AB2D08B989E8D5C0C0" 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_437D5ED5517442D35172B989E8D6AD59" xlink:type="locator" />
    <link:presentationArc order="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_8036EEB4A021F1AB2D08B989E8D5C0C0" xlink:to="loc_us-gaap_RestructuringPlanDomain_437D5ED5517442D35172B989E8D6AD59" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180630.xsd#lqdt_SeveranceAgreementMember" xlink:label="loc_lqdt_SeveranceAgreementMember_BD74279A8F8FD26D52EFB989E8D6F0AA" xlink:type="locator" />
    <link:presentationArc order="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_437D5ED5517442D35172B989E8D6AD59" xlink:to="loc_lqdt_SeveranceAgreementMember_BD74279A8F8FD26D52EFB989E8D6F0AA" 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_4A3156876FB1EDFCEA17B989E8D69777" 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_ScheduleOfRestructuringAndRelatedCostsTable_68A49DF31AA0ACFDDE5BB989E8D3FD4C" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_4A3156876FB1EDFCEA17B989E8D69777" 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_A57C17D0C0F2C04E03B8B989E8D6A1CF" xlink:type="locator" />
    <link:presentationArc order="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_4A3156876FB1EDFCEA17B989E8D69777" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_A57C17D0C0F2C04E03B8B989E8D6A1CF" 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_44BE75C0DF7C386CB12FB989E8D7F01C" xlink:type="locator" />
    <link:presentationArc order="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_A57C17D0C0F2C04E03B8B989E8D6A1CF" xlink:to="loc_us-gaap_ContractBasedIntangibleAssetsMember_44BE75C0DF7C386CB12FB989E8D7F01C" 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_F348C806BBC9C5889F30B989E8D7CAB0" 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_ScheduleOfRestructuringAndRelatedCostsTable_68A49DF31AA0ACFDDE5BB989E8D3FD4C" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_F348C806BBC9C5889F30B989E8D7CAB0" 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_94765FAD36FDB7296475B989E8D7D1DF" xlink:type="locator" />
    <link:presentationArc order="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_F348C806BBC9C5889F30B989E8D7CAB0" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_94765FAD36FDB7296475B989E8D7D1DF" 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_61227BDFE600AD5AC4AAB989E8D79C90" xlink:type="locator" />
    <link:presentationArc order="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_94765FAD36FDB7296475B989E8D7D1DF" xlink:to="loc_us-gaap_LeaseholdImprovementsMember_61227BDFE600AD5AC4AAB989E8D79C90" 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_BFDC1271D8876DD06B4AB989E8D818FE" 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_ScheduleOfRestructuringAndRelatedCostsTable_68A49DF31AA0ACFDDE5BB989E8D3FD4C" xlink:to="loc_us-gaap_ConsolidationItemsAxis_BFDC1271D8876DD06B4AB989E8D818FE" 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_61039F664B192CA7C47EB989E8D8ED3D" xlink:type="locator" />
    <link:presentationArc order="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_BFDC1271D8876DD06B4AB989E8D818FE" xlink:to="loc_us-gaap_ConsolidationItemsDomain_61039F664B192CA7C47EB989E8D8ED3D" 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_353F727D7BD39BACE457B989E8D8825E" xlink:type="locator" />
    <link:presentationArc order="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_61039F664B192CA7C47EB989E8D8ED3D" xlink:to="loc_us-gaap_CorporateNonSegmentMember_353F727D7BD39BACE457B989E8D8825E" 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_2D9EAB1E3EC2B9B260D7B989E8D8360F" 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_ScheduleOfRestructuringAndRelatedCostsTable_68A49DF31AA0ACFDDE5BB989E8D3FD4C" xlink:to="loc_us-gaap_StatementGeographicalAxis_2D9EAB1E3EC2B9B260D7B989E8D8360F" 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_C1A9C83119A5A1EE49B5B989E8D9E319" xlink:type="locator" />
    <link:presentationArc order="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_2D9EAB1E3EC2B9B260D7B989E8D8360F" xlink:to="loc_us-gaap_SegmentGeographicalDomain_C1A9C83119A5A1EE49B5B989E8D9E319" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180630.xsd#lqdt_BethesdaMarylandMember" xlink:label="loc_lqdt_BethesdaMarylandMember_3FFF9D684D6C442C989CB989E8D9E263" xlink:type="locator" />
    <link:presentationArc order="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_C1A9C83119A5A1EE49B5B989E8D9E319" xlink:to="loc_lqdt_BethesdaMarylandMember_3FFF9D684D6C442C989CB989E8D9E263" 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_CAAFA907AF5E61ADAE18B989E8D902CB" 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_C1A9C83119A5A1EE49B5B989E8D9E319" xlink:to="loc_stpr_DC_CAAFA907AF5E61ADAE18B989E8D902CB" 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_3088BCE02216237CED73B989E8D97D7F" 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_ScheduleOfRestructuringAndRelatedCostsTable_68A49DF31AA0ACFDDE5BB989E8D3FD4C" xlink:to="loc_us-gaap_IncomeStatementLocationAxis_3088BCE02216237CED73B989E8D97D7F" 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_96E468AE8151E25C7791B989E8D98747" xlink:type="locator" />
    <link:presentationArc order="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_3088BCE02216237CED73B989E8D97D7F" xlink:to="loc_us-gaap_IncomeStatementLocationDomain_96E468AE8151E25C7791B989E8D98747" 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_AB14BD3CB2604C6E08ADB989E8DA79B4" xlink:type="locator" />
    <link:presentationArc order="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_96E468AE8151E25C7791B989E8D98747" xlink:to="loc_us-gaap_OtherOperatingIncomeExpenseMember_AB14BD3CB2604C6E08ADB989E8DA79B4" 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_8B6284FBF1798F7589C5B989E8DAE76C" 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_ScheduleOfRestructuringAndRelatedCostsTable_68A49DF31AA0ACFDDE5BB989E8D3FD4C" xlink:to="loc_us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis_8B6284FBF1798F7589C5B989E8DAE76C" 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_97C54D9029ADFD83303EB989E8DAF7D4" xlink:type="locator" />
    <link:presentationArc order="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_8B6284FBF1798F7589C5B989E8DAE76C" xlink:to="loc_us-gaap_MortgageLoansOnRealEstateNamePropertyTypeDomain_97C54D9029ADFD83303EB989E8DAF7D4" 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_B1EEE31D8BBB496A1C77B989E8DA0FAF" xlink:type="locator" />
    <link:presentationArc order="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_97C54D9029ADFD83303EB989E8DAF7D4" xlink:to="loc_us-gaap_OfficeBuildingMember_B1EEE31D8BBB496A1C77B989E8DA0FAF" 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_AB7C8B60C69C0479839AB989E8DB7417" 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_ScheduleOfRestructuringAndRelatedCostsTable_68A49DF31AA0ACFDDE5BB989E8D3FD4C" xlink:to="loc_us-gaap_RestructuringCostAndReserveLineItems_AB7C8B60C69C0479839AB989E8DB7417" 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_CB7BCFFA9EC2CA14AEBCB989E8DBDF0A" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RestructuringCostAndReserveLineItems_AB7C8B60C69C0479839AB989E8DB7417" xlink:to="loc_us-gaap_RestructuringCosts_CB7BCFFA9EC2CA14AEBCB989E8DBDF0A" 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_9D31C863D37ED9F9E468B989E8DBD7F5" 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_RestructuringCostAndReserveLineItems_AB7C8B60C69C0479839AB989E8DB7417" xlink:to="loc_us-gaap_AssetImpairmentCharges_9D31C863D37ED9F9E468B989E8DBD7F5" 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_829688B35970969205CFB989E8DB8581" 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_RestructuringCostAndReserveLineItems_AB7C8B60C69C0479839AB989E8DB7417" xlink:to="loc_us-gaap_ImpairmentOfIntangibleAssetsFinitelived_829688B35970969205CFB989E8DB8581" 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_2BA616AC03DFA7A3374AB989E8DBB283" 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_RestructuringCostAndReserveLineItems_AB7C8B60C69C0479839AB989E8DB7417" xlink:to="loc_us-gaap_ImpairmentOfLongLivedAssetsHeldForUse_2BA616AC03DFA7A3374AB989E8DBB283" 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_9F66C60CB707B3E8A460B989E8DCB215" 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_RestructuringCostAndReserveLineItems_AB7C8B60C69C0479839AB989E8DB7417" xlink:to="loc_us-gaap_BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability1_9F66C60CB707B3E8A460B989E8DCB215" 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_08CDB689581494914B85B989E8DC93D9" 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_RestructuringCostAndReserveLineItems_AB7C8B60C69C0479839AB989E8DB7417" xlink:to="loc_us-gaap_AreaOfRealEstateProperty_08CDB689581494914B85B989E8DC93D9" 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_8D16625123565606C2ABB989E8DC9C22" 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_RestructuringCostAndReserveLineItems_AB7C8B60C69C0479839AB989E8DB7417" xlink:to="loc_us-gaap_LossOnContractTermination_8D16625123565606C2ABB989E8DC9C22" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180630.xsd#lqdt_PaymentonContractLossTermination" xlink:label="loc_lqdt_PaymentonContractLossTermination_D924A8F09D4605EA7486B989E8DCA1A9" 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_RestructuringCostAndReserveLineItems_AB7C8B60C69C0479839AB989E8DB7417" xlink:to="loc_lqdt_PaymentonContractLossTermination_D924A8F09D4605EA7486B989E8DCA1A9" 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_76C54A084546143A2639B989E8DC175E" 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_RestructuringCostAndReserveLineItems_AB7C8B60C69C0479839AB989E8DB7417" xlink:to="loc_us-gaap_RestructuringCharges_76C54A084546143A2639B989E8DC175E" 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_2FF9C7E694C9BBC64C40B989E8DC38F1" 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_RestructuringCostAndReserveLineItems_AB7C8B60C69C0479839AB989E8DB7417" xlink:to="loc_us-gaap_RestructuringReserve_2FF9C7E694C9BBC64C40B989E8DC38F1" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.liquidityservices.com/role/BusinessRealignmentExpensesRestructuringRelatedCostsDetails" 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_F133F0B771A6D82DBA908AE04B13494F" 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_63356BC0F0AA9FD965328AE04B138CA2" xlink:type="locator" />
    <link:presentationArc order="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_F133F0B771A6D82DBA908AE04B13494F" xlink:to="loc_us-gaap_ScheduleOfRestructuringAndRelatedCostsTable_63356BC0F0AA9FD965328AE04B138CA2" 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_879D9C05E5C9224CE4CF8AE04B14212A" xlink:type="locator" />
    <link:presentationArc order="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_63356BC0F0AA9FD965328AE04B138CA2" xlink:to="loc_us-gaap_StatementBusinessSegmentsAxis_879D9C05E5C9224CE4CF8AE04B14212A" 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_6EDEAECB9FF763CF811D8AE04B1566B8" xlink:type="locator" />
    <link:presentationArc order="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_879D9C05E5C9224CE4CF8AE04B14212A" xlink:to="loc_us-gaap_SegmentDomain_6EDEAECB9FF763CF811D8AE04B1566B8" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180630.xsd#lqdt_CAGMember" xlink:label="loc_lqdt_CAGMember_6D5B1AB565B43F522CEF8AE04B152F7A" xlink:type="locator" />
    <link:presentationArc order="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_6EDEAECB9FF763CF811D8AE04B1566B8" xlink:to="loc_lqdt_CAGMember_6D5B1AB565B43F522CEF8AE04B152F7A" 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_085ECB483D96DF35FC368AE04B14A7E4" 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_63356BC0F0AA9FD965328AE04B138CA2" xlink:to="loc_us-gaap_ConsolidationItemsAxis_085ECB483D96DF35FC368AE04B14A7E4" 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_223BFC8A033365870DE98AE04B1424DD" xlink:type="locator" />
    <link:presentationArc order="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_085ECB483D96DF35FC368AE04B14A7E4" xlink:to="loc_us-gaap_ConsolidationItemsDomain_223BFC8A033365870DE98AE04B1424DD" 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_8999F2F78D042DDC6CB98AE04B149C10" xlink:type="locator" />
    <link:presentationArc order="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_223BFC8A033365870DE98AE04B1424DD" xlink:to="loc_us-gaap_CorporateNonSegmentMember_8999F2F78D042DDC6CB98AE04B149C10" 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_0676A9E1678A3FE557858AE04B15C1E3" 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_ScheduleOfRestructuringAndRelatedCostsTable_63356BC0F0AA9FD965328AE04B138CA2" xlink:to="loc_us-gaap_RestructuringCostAndReserveAxis_0676A9E1678A3FE557858AE04B15C1E3" 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_775B249B8356F22F3A048AE04B1664C7" xlink:type="locator" />
    <link:presentationArc order="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_0676A9E1678A3FE557858AE04B15C1E3" xlink:to="loc_us-gaap_TypeOfRestructuringDomain_775B249B8356F22F3A048AE04B1664C7" 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_47B3E06691C3A4E0645C8AE04B16F440" xlink:type="locator" />
    <link:presentationArc order="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_775B249B8356F22F3A048AE04B1664C7" xlink:to="loc_us-gaap_EmployeeSeveranceMember_47B3E06691C3A4E0645C8AE04B16F440" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180630.xsd#lqdt_OccupancyCostMember" xlink:label="loc_lqdt_OccupancyCostMember_6F64D15593F4DF9F62EE8AE04B160EB1" 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_775B249B8356F22F3A048AE04B1664C7" xlink:to="loc_lqdt_OccupancyCostMember_6F64D15593F4DF9F62EE8AE04B160EB1" 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_9BF18E462CF5118F122E8AE04B16986D" 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_ScheduleOfRestructuringAndRelatedCostsTable_63356BC0F0AA9FD965328AE04B138CA2" xlink:to="loc_us-gaap_RestructuringCostAndReserveLineItems_9BF18E462CF5118F122E8AE04B16986D" 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_C3DB90925A2D337DE1D28AE04B164226" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RestructuringCostAndReserveLineItems_9BF18E462CF5118F122E8AE04B16986D" xlink:to="loc_us-gaap_RestructuringReserveRollForward_C3DB90925A2D337DE1D28AE04B164226" 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_39D81C596A3C9A69D0378AE04B17F77E" 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_RestructuringReserveRollForward_C3DB90925A2D337DE1D28AE04B164226" xlink:to="loc_us-gaap_RestructuringReserve_39D81C596A3C9A69D0378AE04B17F77E" 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_77439F12CBBF635283B98AE04B1746BE" 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_RestructuringReserveRollForward_C3DB90925A2D337DE1D28AE04B164226" xlink:to="loc_us-gaap_RestructuringCharges_77439F12CBBF635283B98AE04B1746BE" 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_45A107E2B7B76E419D4E8AE04B1724AF" 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_RestructuringReserveRollForward_C3DB90925A2D337DE1D28AE04B164226" xlink:to="loc_us-gaap_PaymentsForRestructuring_45A107E2B7B76E419D4E8AE04B1724AF" 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_EC29AD7A1C1FD4CD0F098AE04B1776A1" 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_RestructuringReserveRollForward_C3DB90925A2D337DE1D28AE04B164226" xlink:to="loc_us-gaap_RestructuringReserve_EC29AD7A1C1FD4CD0F098AE04B1776A1" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.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_5FB74FC0E2F6CCE0431923120DF843D1" 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_6EEB29B922F7860A5DDC23120DF80699" xlink:type="locator" />
    <link:presentationArc order="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_5FB74FC0E2F6CCE0431923120DF843D1" xlink:to="loc_us-gaap_ScheduleOfRestructuringAndRelatedCostsTextBlock_6EEB29B922F7860A5DDC23120DF80699" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.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_0368999061B134CB97FEF0AF1FE24E6A" 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_539BB60EAEC429F50AA2F0AF1FF0F393" xlink:type="locator" />
    <link:presentationArc order="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_0368999061B134CB97FEF0AF1FE24E6A" xlink:to="loc_us-gaap_AssetsAbstract_539BB60EAEC429F50AA2F0AF1FF0F393" 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_A8A93C3EFB6F01243E06F0AF1FFB17D6" xlink:type="locator" />
    <link:presentationArc order="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_539BB60EAEC429F50AA2F0AF1FF0F393" xlink:to="loc_us-gaap_AssetsCurrentAbstract_A8A93C3EFB6F01243E06F0AF1FFB17D6" 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_6682CA5C8175A3E915D1F0AF1FFE030C" xlink:type="locator" />
    <link:presentationArc order="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_A8A93C3EFB6F01243E06F0AF1FFB17D6" xlink:to="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_6682CA5C8175A3E915D1F0AF1FFE030C" 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_7C1D54FE74B4BF0BFF0AF0AF98487699" 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_A8A93C3EFB6F01243E06F0AF1FFB17D6" xlink:to="loc_us-gaap_ShortTermInvestments_7C1D54FE74B4BF0BFF0AF0AF98487699" 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_91B31779EADA0C80A438F0AF1FFF072E" 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_A8A93C3EFB6F01243E06F0AF1FFB17D6" xlink:to="loc_us-gaap_AccountsReceivableNetCurrent_91B31779EADA0C80A438F0AF1FFF072E" 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_17685402D07333D94C5AF0AF200012C6" 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_A8A93C3EFB6F01243E06F0AF1FFB17D6" xlink:to="loc_us-gaap_InventoryNet_17685402D07333D94C5AF0AF200012C6" 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_CACEC1F83AFB97376718F0AF20003CBA" 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_A8A93C3EFB6F01243E06F0AF1FFB17D6" xlink:to="loc_us-gaap_PrepaidTaxes_CACEC1F83AFB97376718F0AF20003CBA" 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_FDBFF2939497067AE2CAF0AF20015EF5" 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_A8A93C3EFB6F01243E06F0AF1FFB17D6" xlink:to="loc_us-gaap_PrepaidExpenseAndOtherAssetsCurrent_FDBFF2939497067AE2CAF0AF20015EF5" 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_41F6FD06D514448B4B84F0AF2002EBA0" 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_A8A93C3EFB6F01243E06F0AF1FFB17D6" xlink:to="loc_us-gaap_AssetsCurrent_41F6FD06D514448B4B84F0AF2002EBA0" 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_DC752440D726019AE5C7F0AF20033FD3" 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_539BB60EAEC429F50AA2F0AF1FF0F393" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentNet_DC752440D726019AE5C7F0AF20033FD3" 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_51D19608DD3D3B0AA231F0AF2003D4DF" 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_539BB60EAEC429F50AA2F0AF1FF0F393" xlink:to="loc_us-gaap_IntangibleAssetsNetExcludingGoodwill_51D19608DD3D3B0AA231F0AF2003D4DF" 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_1E3BD0E8E9DA34DE191DF0AF20036EA1" 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_539BB60EAEC429F50AA2F0AF1FF0F393" xlink:to="loc_us-gaap_Goodwill_1E3BD0E8E9DA34DE191DF0AF20036EA1" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredTaxAssetsGrossNoncurrent" xlink:label="loc_us-gaap_DeferredTaxAssetsGrossNoncurrent_D2609F71644E406CA5B4F0AF20044329" 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_539BB60EAEC429F50AA2F0AF1FF0F393" xlink:to="loc_us-gaap_DeferredTaxAssetsGrossNoncurrent_D2609F71644E406CA5B4F0AF20044329" 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_72EA951F46F50AB033D4F0AF20040200" 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_539BB60EAEC429F50AA2F0AF1FF0F393" xlink:to="loc_us-gaap_OtherAssetsNoncurrent_72EA951F46F50AB033D4F0AF20040200" 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_0601731FECC15B6F421CF0AF2004E3A3" 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_539BB60EAEC429F50AA2F0AF1FF0F393" xlink:to="loc_us-gaap_Assets_0601731FECC15B6F421CF0AF2004E3A3" 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_C5FF487F54A30E3FC257F0AF2005B0AD" 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_0368999061B134CB97FEF0AF1FE24E6A" xlink:to="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_C5FF487F54A30E3FC257F0AF2005B0AD" 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_50F73F5874079285A516F0AF2005E51C" xlink:type="locator" />
    <link:presentationArc order="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_C5FF487F54A30E3FC257F0AF2005B0AD" xlink:to="loc_us-gaap_LiabilitiesCurrentAbstract_50F73F5874079285A516F0AF2005E51C" 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_0DF198D5A9E5352DECF1F0AF20069582" xlink:type="locator" />
    <link:presentationArc order="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_50F73F5874079285A516F0AF2005E51C" xlink:to="loc_us-gaap_AccountsPayableCurrent_0DF198D5A9E5352DECF1F0AF20069582" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180630.xsd#lqdt_AccruedExpensesAndOtherCurrentLiabilities" xlink:label="loc_lqdt_AccruedExpensesAndOtherCurrentLiabilities_D96FB599AC30FE4D3263F0AF2007906D" 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_50F73F5874079285A516F0AF2005E51C" xlink:to="loc_lqdt_AccruedExpensesAndOtherCurrentLiabilities_D96FB599AC30FE4D3263F0AF2007906D" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180630.xsd#lqdt_ProfitSharingDistributionsPayable" xlink:label="loc_lqdt_ProfitSharingDistributionsPayable_E67CC035BA3283F21912F0AF2007410E" 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_50F73F5874079285A516F0AF2005E51C" xlink:to="loc_lqdt_ProfitSharingDistributionsPayable_E67CC035BA3283F21912F0AF2007410E" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180630.xsd#lqdt_PayablesToSellersCurrent" xlink:label="loc_lqdt_PayablesToSellersCurrent_F92782E63B80ED5DE20BF0AF2008A4AD" 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_50F73F5874079285A516F0AF2005E51C" xlink:to="loc_lqdt_PayablesToSellersCurrent_F92782E63B80ED5DE20BF0AF2008A4AD" 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_5F38AB1CFAB9667885F1F0AF20083B7B" xlink:type="locator" />
    <link:presentationArc order="5" 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_50F73F5874079285A516F0AF2005E51C" xlink:to="loc_us-gaap_LiabilitiesCurrent_5F38AB1CFAB9667885F1F0AF20083B7B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredTaxAndOtherLiabilitiesNoncurrent" xlink:label="loc_us-gaap_DeferredTaxAndOtherLiabilitiesNoncurrent_F3577F51AA50EA8860D3F0AF2008DDF5" 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_LiabilitiesAndStockholdersEquityAbstract_C5FF487F54A30E3FC257F0AF2005B0AD" xlink:to="loc_us-gaap_DeferredTaxAndOtherLiabilitiesNoncurrent_F3577F51AA50EA8860D3F0AF2008DDF5" 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_29F8A368878B8D1CF13FF0AF2009C188" 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_C5FF487F54A30E3FC257F0AF2005B0AD" xlink:to="loc_us-gaap_Liabilities_29F8A368878B8D1CF13FF0AF2009C188" 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_98776BA3BC7D6807FA8BF0AF200A991E" 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_LiabilitiesAndStockholdersEquityAbstract_C5FF487F54A30E3FC257F0AF2005B0AD" xlink:to="loc_us-gaap_CommitmentsAndContingencies_98776BA3BC7D6807FA8BF0AF200A991E" 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_565E43A257B7DCCA88D3F0AF200A0397" 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_C5FF487F54A30E3FC257F0AF2005B0AD" xlink:to="loc_us-gaap_StockholdersEquityAbstract_565E43A257B7DCCA88D3F0AF200A0397" 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_B189ADF6D03045D03999F0AF200ADDC7" 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_565E43A257B7DCCA88D3F0AF200A0397" xlink:to="loc_us-gaap_CommonStockValue_B189ADF6D03045D03999F0AF200ADDC7" 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_901EDFB7D00A5D2B9B58F0AF200B8859" 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_565E43A257B7DCCA88D3F0AF200A0397" xlink:to="loc_us-gaap_AdditionalPaidInCapitalCommonStock_901EDFB7D00A5D2B9B58F0AF200B8859" 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_4BBED36462348E4F2E3DF0AF200BA259" 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_565E43A257B7DCCA88D3F0AF200A0397" xlink:to="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_4BBED36462348E4F2E3DF0AF200BA259" 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_96BE9E4E3D8E32F66AACF0AF200CE312" 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_565E43A257B7DCCA88D3F0AF200A0397" xlink:to="loc_us-gaap_RetainedEarningsAccumulatedDeficit_96BE9E4E3D8E32F66AACF0AF200CE312" 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_81444BD40AE30F4BC6D3F0AF200C1E96" 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_565E43A257B7DCCA88D3F0AF200A0397" xlink:to="loc_us-gaap_StockholdersEquity_81444BD40AE30F4BC6D3F0AF200C1E96" 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_E741E25175BB2C2AF5ADF0AF200D9DAB" 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_C5FF487F54A30E3FC257F0AF2005B0AD" xlink:to="loc_us-gaap_LiabilitiesAndStockholdersEquity_E741E25175BB2C2AF5ADF0AF200D9DAB" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.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_9AEED481F0F3F031F62423120CC86396" 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_244C06F438A0C4444BEF23120CC8E619" xlink:type="locator" />
    <link:presentationArc order="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_9AEED481F0F3F031F62423120CC86396" xlink:to="loc_us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent_244C06F438A0C4444BEF23120CC8E619" 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_424D2127D623E922E24F23120CC8B821" 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_9AEED481F0F3F031F62423120CC86396" xlink:to="loc_us-gaap_CommonStockParOrStatedValuePerShare_424D2127D623E922E24F23120CC8B821" 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_BB173944561EF94DCBEF23120CC85EA2" 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_9AEED481F0F3F031F62423120CC86396" xlink:to="loc_us-gaap_CommonStockSharesAuthorized_BB173944561EF94DCBEF23120CC85EA2" 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_3829FB78F10C5FDF182C23120CC8CAB4" 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_9AEED481F0F3F031F62423120CC86396" xlink:to="loc_us-gaap_CommonStockSharesIssued_3829FB78F10C5FDF182C23120CC8CAB4" 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_ACD5C623DF5E923EFAC023120CC8D9F8" 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_9AEED481F0F3F031F62423120CC86396" xlink:to="loc_us-gaap_CommonStockSharesOutstanding_ACD5C623DF5E923EFAC023120CC8D9F8" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.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_CompensationAndRetirementDisclosureAbstract" xlink:label="loc_us-gaap_CompensationAndRetirementDisclosureAbstract_7164834190531AC5C3A523120BFD3204" 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_D80B553C01777658BA3123120C0DF7D2" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CompensationAndRetirementDisclosureAbstract_7164834190531AC5C3A523120BFD3204" xlink:to="loc_us-gaap_PensionAndOtherPostretirementBenefitsDisclosureTextBlock_D80B553C01777658BA3123120C0DF7D2" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.liquidityservices.com/role/DefinedBenefitPensionPlanNetPeriodicBenefitDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CompensationAndRetirementDisclosureAbstract" xlink:label="loc_us-gaap_CompensationAndRetirementDisclosureAbstract_2EA2B9F625893A7E2C5B8FFFE0BBB61E" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DefinedBenefitPlanServiceCost" xlink:label="loc_us-gaap_DefinedBenefitPlanServiceCost_4D10C0FFFE85C0DE53D78FFFE0BB81B5" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CompensationAndRetirementDisclosureAbstract_2EA2B9F625893A7E2C5B8FFFE0BBB61E" xlink:to="loc_us-gaap_DefinedBenefitPlanServiceCost_4D10C0FFFE85C0DE53D78FFFE0BB81B5" 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_9A082FAA8167F42C95338FFFE0BBC3F4" 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_CompensationAndRetirementDisclosureAbstract_2EA2B9F625893A7E2C5B8FFFE0BBB61E" xlink:to="loc_us-gaap_DefinedBenefitPlanInterestCost_9A082FAA8167F42C95338FFFE0BBC3F4" 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_6B3D062425625E3E709A8FFFE0BB8DB9" 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_CompensationAndRetirementDisclosureAbstract_2EA2B9F625893A7E2C5B8FFFE0BBB61E" xlink:to="loc_us-gaap_DefinedBenefitPlanExpectedReturnOnPlanAssets_6B3D062425625E3E709A8FFFE0BB8DB9" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180630.xsd#lqdt_DefinedBenefitPlanSettlementCost" xlink:label="loc_lqdt_DefinedBenefitPlanSettlementCost_B798D30ECFF13FB7887C8FFFE0BCD749" 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_CompensationAndRetirementDisclosureAbstract_2EA2B9F625893A7E2C5B8FFFE0BBB61E" xlink:to="loc_lqdt_DefinedBenefitPlanSettlementCost_B798D30ECFF13FB7887C8FFFE0BCD749" 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_577B1A7B1453729A267C8FFFE0BCB41D" 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_CompensationAndRetirementDisclosureAbstract_2EA2B9F625893A7E2C5B8FFFE0BBB61E" xlink:to="loc_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost_577B1A7B1453729A267C8FFFE0BCB41D" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.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_CompensationAndRetirementDisclosureAbstract" xlink:label="loc_us-gaap_CompensationAndRetirementDisclosureAbstract_0C5DB85E70BF8D58CC4F23120E08E97B" 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_7DBA67E03BCC15BA8F9D23120E082BD2" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CompensationAndRetirementDisclosureAbstract_0C5DB85E70BF8D58CC4F23120E08E97B" xlink:to="loc_us-gaap_ScheduleOfNetBenefitCostsTableTextBlock_7DBA67E03BCC15BA8F9D23120E082BD2" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.liquidityservices.com/role/DocumentAndEntityInformation" xlink:type="extended">
    <link:loc xlink:href="lqdt-20180630.xsd#lqdt_DocumentAndEntityInformationAbstract" xlink:label="loc_lqdt_DocumentAndEntityInformationAbstract_1A78B01C1A0E9873CD9F23120BEEA528" 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_D0C660ABAE8EB2E5CB8423120BEECF2D" xlink:type="locator" />
    <link: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_1A78B01C1A0E9873CD9F23120BEEA528" xlink:to="loc_dei_EntityRegistrantName_D0C660ABAE8EB2E5CB8423120BEECF2D" 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_3BC0DBC7C11AD2A5E3AB23120BEE487C" 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_1A78B01C1A0E9873CD9F23120BEEA528" xlink:to="loc_dei_EntityCentralIndexKey_3BC0DBC7C11AD2A5E3AB23120BEE487C" 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_D3930CF5C31D9E572A0723120BEE43CD" 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_1A78B01C1A0E9873CD9F23120BEEA528" xlink:to="loc_dei_DocumentType_D3930CF5C31D9E572A0723120BEE43CD" 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_AEADC9FDDD9078A0B10723120BEEDAD0" 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_1A78B01C1A0E9873CD9F23120BEEA528" xlink:to="loc_dei_DocumentPeriodEndDate_AEADC9FDDD9078A0B10723120BEEDAD0" 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_A7191AC9BFD3A18E4C7C23120BEE5DC4" 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_1A78B01C1A0E9873CD9F23120BEEA528" xlink:to="loc_dei_AmendmentFlag_A7191AC9BFD3A18E4C7C23120BEE5DC4" 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_DC72FE64A891E279E99223120BEE4A5C" 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_1A78B01C1A0E9873CD9F23120BEEA528" xlink:to="loc_dei_CurrentFiscalYearEndDate_DC72FE64A891E279E99223120BEE4A5C" 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_62D7F9DFEA9A4D2158B423120BEE69D7" 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_1A78B01C1A0E9873CD9F23120BEEA528" xlink:to="loc_dei_EntityCurrentReportingStatus_62D7F9DFEA9A4D2158B423120BEE69D7" 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_A20078ACAC349104929123120BEEE387" 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_1A78B01C1A0E9873CD9F23120BEEA528" xlink:to="loc_dei_EntityFilerCategory_A20078ACAC349104929123120BEEE387" 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_214FDD194DE9EEB1987623120BEE4726" 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_1A78B01C1A0E9873CD9F23120BEEA528" xlink:to="loc_dei_EntityCommonStockSharesOutstanding_214FDD194DE9EEB1987623120BEE4726" 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_71E8B369DA8A0DCD80F623120BEE10A6" 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_1A78B01C1A0E9873CD9F23120BEEA528" xlink:to="loc_dei_DocumentFiscalYearFocus_71E8B369DA8A0DCD80F623120BEE10A6" 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_480634801D1F84E6211123120BFD28FF" 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_1A78B01C1A0E9873CD9F23120BEEA528" xlink:to="loc_dei_DocumentFiscalPeriodFocus_480634801D1F84E6211123120BFD28FF" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.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_C2CF8CFC5DC5C433B3C323120E852100" 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_4D1FCEEF700252A4454423120E853298" xlink:type="locator" />
    <link:presentationArc order="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_C2CF8CFC5DC5C433B3C323120E852100" xlink:to="loc_us-gaap_FairValueDisclosuresTextBlock_4D1FCEEF700252A4454423120E853298" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.liquidityservices.com/role/FairValueMeasurementChangeInLevel3AssetsDetails" 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_84FDD0C0D9F2AE04B51B8FFFE0D4BBBD" 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_FC2FB3A9AE700D7792F58FFFE0D5A53C" xlink:type="locator" />
    <link:presentationArc order="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_84FDD0C0D9F2AE04B51B8FFFE0D4BBBD" xlink:to="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_FC2FB3A9AE700D7792F58FFFE0D5A53C" 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_CBDA8BF5A730071042948FFFE0D5A438" xlink:type="locator" />
    <link:presentationArc order="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_FC2FB3A9AE700D7792F58FFFE0D5A53C" xlink:to="loc_us-gaap_FairValueByMeasurementFrequencyAxis_CBDA8BF5A730071042948FFFE0D5A438" 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_37D0D17F298BC43545B18FFFE0D55E03" xlink:type="locator" />
    <link:presentationArc order="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_CBDA8BF5A730071042948FFFE0D5A438" xlink:to="loc_us-gaap_FairValueMeasurementFrequencyDomain_37D0D17F298BC43545B18FFFE0D55E03" 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_C812C79E1D985FBF00FA8FFFE0DB4E6F" xlink:type="locator" />
    <link:presentationArc order="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_37D0D17F298BC43545B18FFFE0D55E03" xlink:to="loc_us-gaap_FairValueMeasurementsRecurringMember_C812C79E1D985FBF00FA8FFFE0DB4E6F" 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_26F8BB0B4E96FDEB79398FFFE0DCC5E1" 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_FC2FB3A9AE700D7792F58FFFE0D5A53C" xlink:to="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_26F8BB0B4E96FDEB79398FFFE0DCC5E1" 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_6485A29ACEF0D9DA6AD28FFFE0DCBAC8" xlink:type="locator" />
    <link:presentationArc order="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_26F8BB0B4E96FDEB79398FFFE0DCC5E1" xlink:to="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_6485A29ACEF0D9DA6AD28FFFE0DCBAC8" 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_50530F35C3D2D3BDA2638FFFE0DD6843" 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_FairValueMeasurementsFairValueHierarchyDomain_6485A29ACEF0D9DA6AD28FFFE0DCBAC8" xlink:to="loc_us-gaap_FairValueInputsLevel3Member_50530F35C3D2D3BDA2638FFFE0DD6843" 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_FBDB63F4601A1CC53E918FFFE0DE3C8E" 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_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_FC2FB3A9AE700D7792F58FFFE0D5A53C" xlink:to="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_FBDB63F4601A1CC53E918FFFE0DE3C8E" 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_6C948B51952826CB10478FFFE0DECC66" xlink:type="locator" />
    <link:presentationArc order="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_FBDB63F4601A1CC53E918FFFE0DE3C8E" xlink:to="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationCalculationRollForward_6C948B51952826CB10478FFFE0DECC66" 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_6A02BB91576B0BA1040F8FFFE0DE85C8" 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_6C948B51952826CB10478FFFE0DECC66" xlink:to="loc_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue_6A02BB91576B0BA1040F8FFFE0DE85C8" 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_E48D96AC3517AB1926528FFFE0DF5E0D" 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_6C948B51952826CB10478FFFE0DECC66" xlink:to="loc_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchases_E48D96AC3517AB1926528FFFE0DF5E0D" 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_A64A03F610B5B27AF11E8FFFE0DF30C6" 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_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationCalculationRollForward_6C948B51952826CB10478FFFE0DECC66" xlink:to="loc_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSettlements_A64A03F610B5B27AF11E8FFFE0DF30C6" 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_5D51DA90F656371E3E518FFFE0DFC643" 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_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationCalculationRollForward_6C948B51952826CB10478FFFE0DECC66" xlink:to="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisChangeInUnrealizedGainLoss_5D51DA90F656371E3E518FFFE0DFC643" 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_B1E48352C8454376331C8FFFE0E04C21" 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_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationCalculationRollForward_6C948B51952826CB10478FFFE0DECC66" xlink:to="loc_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue_B1E48352C8454376331C8FFFE0E04C21" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.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_3D9C5E357414BAAB5D9E8FFFE0F034C0" 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_0C1F7C27343D0CBB986F8FFFE0F09847" xlink:type="locator" />
    <link:presentationArc order="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_3D9C5E357414BAAB5D9E8FFFE0F034C0" xlink:to="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_0C1F7C27343D0CBB986F8FFFE0F09847" 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_F630E64974E281A3F4178FFFE0F1967E" xlink:type="locator" />
    <link:presentationArc order="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_0C1F7C27343D0CBB986F8FFFE0F09847" xlink:to="loc_us-gaap_FairValueByMeasurementFrequencyAxis_F630E64974E281A3F4178FFFE0F1967E" 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_36CF3EC0B42D41AAAA068FFFE0F17F6A" xlink:type="locator" />
    <link:presentationArc order="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_F630E64974E281A3F4178FFFE0F1967E" xlink:to="loc_us-gaap_FairValueMeasurementFrequencyDomain_36CF3EC0B42D41AAAA068FFFE0F17F6A" 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_EEF77A834C74FF175FE58FFFE0F20935" xlink:type="locator" />
    <link:presentationArc order="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_36CF3EC0B42D41AAAA068FFFE0F17F6A" xlink:to="loc_us-gaap_FairValueMeasurementsRecurringMember_EEF77A834C74FF175FE58FFFE0F20935" 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_0FE4487A9ED17614621A8FFFE0F2D73B" 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_0C1F7C27343D0CBB986F8FFFE0F09847" xlink:to="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_0FE4487A9ED17614621A8FFFE0F2D73B" 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_8981B5772E4BF5961A758FFFE0F2EEA2" xlink:type="locator" />
    <link:presentationArc order="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_0FE4487A9ED17614621A8FFFE0F2D73B" xlink:to="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_8981B5772E4BF5961A758FFFE0F2EEA2" 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_517DDF62A0C778DEFD6A8FFFE0F26AB6" xlink:type="locator" />
    <link:presentationArc order="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_8981B5772E4BF5961A758FFFE0F2EEA2" xlink:to="loc_us-gaap_FairValueInputsLevel1Member_517DDF62A0C778DEFD6A8FFFE0F26AB6" 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_7C901249A43992059BF88FFFE0F3166F" 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_8981B5772E4BF5961A758FFFE0F2EEA2" xlink:to="loc_us-gaap_FairValueInputsLevel2Member_7C901249A43992059BF88FFFE0F3166F" 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_B8A8CCAA821F7A72BB6B8FFFE0F3E870" 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_8981B5772E4BF5961A758FFFE0F2EEA2" xlink:to="loc_us-gaap_FairValueInputsLevel3Member_B8A8CCAA821F7A72BB6B8FFFE0F3E870" 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_8469FC73C048DFD5D5ED8FFFE0F37748" 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_0C1F7C27343D0CBB986F8FFFE0F09847" xlink:to="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_8469FC73C048DFD5D5ED8FFFE0F37748" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AssetsFairValueDisclosure" xlink:label="loc_us-gaap_AssetsFairValueDisclosure_C200694B1E4245AE04CC8FFFE0F44FDF" xlink:type="locator" />
    <link:presentationArc order="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_8469FC73C048DFD5D5ED8FFFE0F37748" xlink:to="loc_us-gaap_AssetsFairValueDisclosure_C200694B1E4245AE04CC8FFFE0F44FDF" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LiabilitiesFairValueDisclosure" xlink:label="loc_us-gaap_LiabilitiesFairValueDisclosure_EE9C5E7DD10B74C42D0E8FFFE0F4900E" 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_8469FC73C048DFD5D5ED8FFFE0F37748" xlink:to="loc_us-gaap_LiabilitiesFairValueDisclosure_EE9C5E7DD10B74C42D0E8FFFE0F4900E" 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_1481CD67DF9DFC7EF2358FFFE0F410DB" 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_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_8469FC73C048DFD5D5ED8FFFE0F37748" xlink:to="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisChangeInUnrealizedGainLoss_1481CD67DF9DFC7EF2358FFFE0F410DB" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.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_EE7662CCD036DACCC2FC23120BCEF545" 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_78DBDC9A7A697E195FF423120BCE95F8" xlink:type="locator" />
    <link:presentationArc order="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_EE7662CCD036DACCC2FC23120BCEF545" xlink:to="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationTextBlock_78DBDC9A7A697E195FF423120BCE95F8" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.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_756D740F7460B1885DB023120D36FACF" 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_AB9ABF077F3781C0CED523120D368A78" xlink:type="locator" />
    <link:presentationArc order="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_756D740F7460B1885DB023120D36FACF" xlink:to="loc_us-gaap_GoodwillDisclosureTextBlock_AB9ABF077F3781C0CED523120D368A78" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.liquidityservices.com/role/GoodwillAdjustmentsDetails" 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_D127EE6869BA9A39F7CF8FFFE1BE5D66" 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_728A6E52CA153C513D538FFFE1BF70FB" xlink:type="locator" />
    <link:presentationArc order="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_D127EE6869BA9A39F7CF8FFFE1BE5D66" xlink:to="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_728A6E52CA153C513D538FFFE1BF70FB" 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_F9A46C84B761EF5213468FFFE1BFDA25" xlink:type="locator" />
    <link:presentationArc order="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_728A6E52CA153C513D538FFFE1BF70FB" xlink:to="loc_us-gaap_StatementBusinessSegmentsAxis_F9A46C84B761EF5213468FFFE1BFDA25" 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_5C0A254DE5D6AF8449D58FFFE1BF014D" xlink:type="locator" />
    <link:presentationArc order="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_F9A46C84B761EF5213468FFFE1BFDA25" xlink:to="loc_us-gaap_SegmentDomain_5C0A254DE5D6AF8449D58FFFE1BF014D" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180630.xsd#lqdt_CAGMember" xlink:label="loc_lqdt_CAGMember_2DFA568A29027717D6C48FFFE1C022B9" xlink:type="locator" />
    <link:presentationArc order="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_5C0A254DE5D6AF8449D58FFFE1BF014D" xlink:to="loc_lqdt_CAGMember_2DFA568A29027717D6C48FFFE1C022B9" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180630.xsd#lqdt_GovDealsMember" xlink:label="loc_lqdt_GovDealsMember_E938FE07F0845A8BDEE88FFFE1C0F7DF" 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_5C0A254DE5D6AF8449D58FFFE1BF014D" xlink:to="loc_lqdt_GovDealsMember_E938FE07F0845A8BDEE88FFFE1C0F7DF" 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_F6A2325735A342C3ECD08FFFE1C05F70" 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_728A6E52CA153C513D538FFFE1BF70FB" xlink:to="loc_us-gaap_SegmentReportingInformationLineItems_F6A2325735A342C3ECD08FFFE1C05F70" 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_EC281098650806FFF4B78FFFE1C0748C" xlink:type="locator" />
    <link:presentationArc order="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_F6A2325735A342C3ECD08FFFE1C05F70" xlink:to="loc_us-gaap_GoodwillRollForward_EC281098650806FFF4B78FFFE1C0748C" 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_988D9C86B7129BEF88C18FFFE1C1FEA9" 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_EC281098650806FFF4B78FFFE1C0748C" xlink:to="loc_us-gaap_Goodwill_988D9C86B7129BEF88C18FFFE1C1FEA9" 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_E135A820CC3BB98B40888FFFE1C1224D" 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_GoodwillRollForward_EC281098650806FFF4B78FFFE1C0748C" xlink:to="loc_us-gaap_GoodwillForeignCurrencyTranslationGainLoss_E135A820CC3BB98B40888FFFE1C1224D" 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_1C27F5209AA1F407E3EA8FFFE1C67195" 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_GoodwillRollForward_EC281098650806FFF4B78FFFE1C0748C" xlink:to="loc_us-gaap_Goodwill_1C27F5209AA1F407E3EA8FFFE1C67195" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.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_3A75CAA790F559ED426923120C4B1387" 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_5058CD0B732633A3C09023120C4B6AA7" xlink:type="locator" />
    <link:presentationArc order="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_3A75CAA790F559ED426923120C4B1387" xlink:to="loc_us-gaap_ScheduleOfGoodwillTextBlock_5058CD0B732633A3C09023120C4B6AA7" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.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_21852DA6E9D8FE6F809A23120C9AC4D4" 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_E44E70CD5114A4C71A8123120C9AA09C" xlink:type="locator" />
    <link:presentationArc order="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_21852DA6E9D8FE6F809A23120C9AC4D4" xlink:to="loc_us-gaap_GuaranteesTextBlock_E44E70CD5114A4C71A8123120C9AA09C" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.liquidityservices.com/role/GuaranteesNarrativeDetails" 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_594B093CF61BEC37B4498FFFE0AB0DF2" 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_E9B56C36DCFD401D24358FFFE0ABA6B6" xlink:type="locator" />
    <link:presentationArc order="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_594B093CF61BEC37B4498FFFE0AB0DF2" xlink:to="loc_us-gaap_GuaranteeObligationsCurrentCarryingValue_E9B56C36DCFD401D24358FFFE0ABA6B6" 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_E4323EEC5DB6B57038818FFFE0AC59F7" 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_GuaranteesAbstract_594B093CF61BEC37B4498FFFE0AB0DF2" xlink:to="loc_us-gaap_DefinedBenefitPlanFundedStatusOfPlan_E4323EEC5DB6B57038818FFFE0AC59F7" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.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_284964C69D59B0CF5ADC23120B55951D" 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_D8346CAB6A7C93DC004023120B55093D" xlink:type="locator" />
    <link:presentationArc order="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_284964C69D59B0CF5ADC23120B55951D" xlink:to="loc_us-gaap_IncomeTaxDisclosureTextBlock_D8346CAB6A7C93DC004023120B55093D" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.liquidityservices.com/role/IncomeTaxesNarrativeDetails" 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_2C509C527A78AA4F077AB98954465E12" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeTaxExaminationTable" xlink:label="loc_us-gaap_IncomeTaxExaminationTable_2AF06E28C11714A07034B9895449B05A" xlink:type="locator" />
    <link:presentationArc order="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_2C509C527A78AA4F077AB98954465E12" xlink:to="loc_us-gaap_IncomeTaxExaminationTable_2AF06E28C11714A07034B9895449B05A" 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_59C49B52480AD103086BB989544AAD27" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxExaminationTable_2AF06E28C11714A07034B9895449B05A" xlink:to="loc_us-gaap_IncomeTaxAuthorityAxis_59C49B52480AD103086BB989544AAD27" 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_CC75D2B39E9EEDC8CAA0B989544A8B93" xlink:type="locator" />
    <link:presentationArc order="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_59C49B52480AD103086BB989544AAD27" xlink:to="loc_us-gaap_IncomeTaxAuthorityDomain_CC75D2B39E9EEDC8CAA0B989544A8B93" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DomesticCountryMember" xlink:label="loc_us-gaap_DomesticCountryMember_D794A6716D5B55F3D1C3B9895450B8D0" xlink:type="locator" />
    <link:presentationArc order="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_CC75D2B39E9EEDC8CAA0B989544A8B93" xlink:to="loc_us-gaap_DomesticCountryMember_D794A6716D5B55F3D1C3B9895450B8D0" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeTaxExaminationLineItems" xlink:label="loc_us-gaap_IncomeTaxExaminationLineItems_CFDADCAAAF398CDB6DD6B9895451AE75" 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_IncomeTaxExaminationTable_2AF06E28C11714A07034B9895449B05A" xlink:to="loc_us-gaap_IncomeTaxExaminationLineItems_CFDADCAAAF398CDB6DD6B9895451AE75" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180630.xsd#lqdt_TaxCutsandJobsActof2017BlendedTaxRatePercent" xlink:label="loc_lqdt_TaxCutsandJobsActof2017BlendedTaxRatePercent_93BEC5E528E327F76D3FB9895451CCC8" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxExaminationLineItems_CFDADCAAAF398CDB6DD6B9895451AE75" xlink:to="loc_lqdt_TaxCutsandJobsActof2017BlendedTaxRatePercent_93BEC5E528E327F76D3FB9895451CCC8" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180630.xsd#lqdt_TaxCutsandJobsActof2017ChangeinTaxRateDeferredTaxAssetIncomeTaxExpenseBenefit" xlink:label="loc_lqdt_TaxCutsandJobsActof2017ChangeinTaxRateDeferredTaxAssetIncomeTaxExpenseBenefit_44F6E75E055DE5E74D7CB98954516FC3" 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_IncomeTaxExaminationLineItems_CFDADCAAAF398CDB6DD6B9895451AE75" xlink:to="loc_lqdt_TaxCutsandJobsActof2017ChangeinTaxRateDeferredTaxAssetIncomeTaxExpenseBenefit_44F6E75E055DE5E74D7CB98954516FC3" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180630.xsd#lqdt_TaxCutsAndJobsActOf2017ChangeInTaxRateAlternativeMinimumIncomeTaxCreditIncomeTaxExpenseBenefit" xlink:label="loc_lqdt_TaxCutsAndJobsActOf2017ChangeInTaxRateAlternativeMinimumIncomeTaxCreditIncomeTaxExpenseBenefit_B34B4ABF9A8C31CB1527B9895452C88D" 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_IncomeTaxExaminationLineItems_CFDADCAAAF398CDB6DD6B9895451AE75" xlink:to="loc_lqdt_TaxCutsAndJobsActOf2017ChangeInTaxRateAlternativeMinimumIncomeTaxCreditIncomeTaxExpenseBenefit_B34B4ABF9A8C31CB1527B9895452C88D" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180630.xsd#lqdt_EstimatedEffectiveIncomeTaxRateContinuingOperations" xlink:label="loc_lqdt_EstimatedEffectiveIncomeTaxRateContinuingOperations_C91EB0CABCDEA2701D0CB9895452A48A" 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_IncomeTaxExaminationLineItems_CFDADCAAAF398CDB6DD6B9895451AE75" xlink:to="loc_lqdt_EstimatedEffectiveIncomeTaxRateContinuingOperations_C91EB0CABCDEA2701D0CB9895452A48A" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180630.xsd#lqdt_TaxCutsAndJobsActOf2017ChangeInTaxRateIncomeTaxExpenseBenefit" xlink:label="loc_lqdt_TaxCutsAndJobsActOf2017ChangeInTaxRateIncomeTaxExpenseBenefit_F0B6C5F064CFCE0E9B88B9895452155F" 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_IncomeTaxExaminationLineItems_CFDADCAAAF398CDB6DD6B9895451AE75" xlink:to="loc_lqdt_TaxCutsAndJobsActOf2017ChangeInTaxRateIncomeTaxExpenseBenefit_F0B6C5F064CFCE0E9B88B9895452155F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeTaxExaminationPenaltiesExpense" xlink:label="loc_us-gaap_IncomeTaxExaminationPenaltiesExpense_E95C800E57246EDA0FCBB9895452CE91" 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_IncomeTaxExaminationLineItems_CFDADCAAAF398CDB6DD6B9895451AE75" xlink:to="loc_us-gaap_IncomeTaxExaminationPenaltiesExpense_E95C800E57246EDA0FCBB9895452CE91" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.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_FE7958AEC7A63B26133023120C9A163D" 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_C04D4F2E6A3601104AFC23120C9AE82B" xlink:type="locator" />
    <link:presentationArc order="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_FE7958AEC7A63B26133023120C9A163D" xlink:to="loc_us-gaap_IntangibleAssetsDisclosureTextBlock_C04D4F2E6A3601104AFC23120C9AE82B" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.liquidityservices.com/role/IntangibleAssetsAmortizationDetails" 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_F5733A2F681FFDFD7FD48AE04B901B67" 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_91C3F5B5B3D44EF957178AE04B90ECBD" xlink:type="locator" />
    <link:presentationArc order="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_F5733A2F681FFDFD7FD48AE04B901B67" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsFutureAmortizationExpenseAbstract_91C3F5B5B3D44EF957178AE04B90ECBD" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseRemainderOfFiscalYear" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseRemainderOfFiscalYear_E0D2DABCA6C51639BFEE8AE04B91731B" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsFutureAmortizationExpenseAbstract_91C3F5B5B3D44EF957178AE04B90ECBD" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseRemainderOfFiscalYear_E0D2DABCA6C51639BFEE8AE04B91731B" 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_73668BF01739F571DC098AE04B91953D" 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_91C3F5B5B3D44EF957178AE04B90ECBD" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo_73668BF01739F571DC098AE04B91953D" 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_9302690F10393E3835BF8AE04B914B91" 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_91C3F5B5B3D44EF957178AE04B90ECBD" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree_9302690F10393E3835BF8AE04B914B91" 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_467043F2217BF245AD5D8AE04B9128AB" 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_91C3F5B5B3D44EF957178AE04B90ECBD" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour_467043F2217BF245AD5D8AE04B9128AB" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180630.xsd#lqdt_FiniteLivedIntangibleAssetsAmortizationExpenseYearFiveAndThereafter" xlink:label="loc_lqdt_FiniteLivedIntangibleAssetsAmortizationExpenseYearFiveAndThereafter_6393EC427A24C727E7C48AE04B918FC3" 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_91C3F5B5B3D44EF957178AE04B90ECBD" xlink:to="loc_lqdt_FiniteLivedIntangibleAssetsAmortizationExpenseYearFiveAndThereafter_6393EC427A24C727E7C48AE04B918FC3" 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_341A0DB699F46E35FDE88AE04B92F50D" 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_FiniteLivedIntangibleAssetsFutureAmortizationExpenseAbstract_91C3F5B5B3D44EF957178AE04B90ECBD" xlink:to="loc_us-gaap_IntangibleAssetsNetExcludingGoodwill_341A0DB699F46E35FDE88AE04B92F50D" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.liquidityservices.com/role/IntangibleAssetsCarryingAmountDetails" 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_96E7652D8BFB3F13F14C23120C7AC20E" 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_4418B214D3D2265FE7FF23120C7AD38A" xlink:type="locator" />
    <link:presentationArc order="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_96E7652D8BFB3F13F14C23120C7AC20E" xlink:to="loc_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable_4418B214D3D2265FE7FF23120C7AD38A" 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_53E55B73D894C0B4EA4323120C7A5B96" xlink:type="locator" />
    <link:presentationArc order="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_4418B214D3D2265FE7FF23120C7AD38A" xlink:to="loc_us-gaap_RangeAxis_53E55B73D894C0B4EA4323120C7A5B96" 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_9F435E9CAE3DCB21E26C23120C7A7CC3" xlink:type="locator" />
    <link:presentationArc order="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_53E55B73D894C0B4EA4323120C7A5B96" xlink:to="loc_us-gaap_RangeMember_9F435E9CAE3DCB21E26C23120C7A7CC3" 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_600F68DF2B117BD9F32D23120C7AFCB9" xlink:type="locator" />
    <link:presentationArc order="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_9F435E9CAE3DCB21E26C23120C7A7CC3" xlink:to="loc_us-gaap_MinimumMember_600F68DF2B117BD9F32D23120C7AFCB9" 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_B179FBBE7E965D0BDA9B23120C7A8227" 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_9F435E9CAE3DCB21E26C23120C7A7CC3" xlink:to="loc_us-gaap_MaximumMember_B179FBBE7E965D0BDA9B23120C7A8227" 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_FA2D1335B62E2567856123120C8A03F7" 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_4418B214D3D2265FE7FF23120C7AD38A" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_FA2D1335B62E2567856123120C8A03F7" 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_38393C2F25E8D39C722E23120C8A6270" xlink:type="locator" />
    <link:presentationArc order="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_FA2D1335B62E2567856123120C8A03F7" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_38393C2F25E8D39C722E23120C8A6270" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180630.xsd#lqdt_PatentsAndTrademarksMember" xlink:label="loc_lqdt_PatentsAndTrademarksMember_46964ADC3CCF8738AF1823120C8A35AF" xlink:type="locator" />
    <link:presentationArc order="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_38393C2F25E8D39C722E23120C8A6270" xlink:to="loc_lqdt_PatentsAndTrademarksMember_46964ADC3CCF8738AF1823120C8A35AF" 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_E333250932394F76572223120C8A12C5" 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_4418B214D3D2265FE7FF23120C7AD38A" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_E333250932394F76572223120C8A12C5" 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_17F843779071D60465C023120C8A5781" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_E333250932394F76572223120C8A12C5" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetUsefulLife_17F843779071D60465C023120C8A5781" 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_24AEA4BEAEA78EBD29DA23120C8AF459" 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_E333250932394F76572223120C8A12C5" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsGross_24AEA4BEAEA78EBD29DA23120C8AF459" 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_C9D96BF6A46E265EA71A23120C8A6DE5" 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_E333250932394F76572223120C8A12C5" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization_C9D96BF6A46E265EA71A23120C8A6DE5" 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_C9190320ED881BCAF73423120C8A785E" 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_E333250932394F76572223120C8A12C5" xlink:to="loc_us-gaap_IntangibleAssetsNetExcludingGoodwill_C9190320ED881BCAF73423120C8A785E" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.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_15ED40872D7A43932F2AB97A4FA7C383" xlink:type="locator" />
    <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_BB93323AFBF277237E7AB97A4FA70084" xlink:type="locator" />
    <link:presentationArc order="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_15ED40872D7A43932F2AB97A4FA7C383" xlink:to="loc_us-gaap_AmortizationOfIntangibleAssets_BB93323AFBF277237E7AB97A4FA70084" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.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_C7BAE194E90121EF2E7923120D6B4F66" 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_F37DB520B0B7236669B723120D6B5A65" xlink:type="locator" />
    <link:presentationArc order="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_C7BAE194E90121EF2E7923120D6B4F66" xlink:to="loc_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTableTextBlock_F37DB520B0B7236669B723120D6B5A65" 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_D48257D2B06F4BC0D34023120D6B3077" 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_C7BAE194E90121EF2E7923120D6B4F66" xlink:to="loc_us-gaap_ScheduleofFiniteLivedIntangibleAssetsFutureAmortizationExpenseTableTextBlock_D48257D2B06F4BC0D34023120D6B3077" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.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_CommitmentsAndContingenciesDisclosureAbstract" xlink:label="loc_us-gaap_CommitmentsAndContingenciesDisclosureAbstract_97AE0B5C09CA0A79960623120E086955" 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_08EA7C93AA60EE0F4AE423120E08873E" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CommitmentsAndContingenciesDisclosureAbstract_97AE0B5C09CA0A79960623120E086955" xlink:to="loc_us-gaap_LegalMattersAndContingenciesTextBlock_08EA7C93AA60EE0F4AE423120E08873E" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.liquidityservices.com/role/LegalProceedingsNarrativeDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CommitmentsAndContingenciesDisclosureAbstract" xlink:label="loc_us-gaap_CommitmentsAndContingenciesDisclosureAbstract_16AB4FDAC7077A5AE6DA8AE04B0B78C8" 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_E6F2C88B9C9886A0579C8AE04B0D2308" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CommitmentsAndContingenciesDisclosureAbstract_16AB4FDAC7077A5AE6DA8AE04B0B78C8" xlink:to="loc_us-gaap_LossContingencyEstimateOfPossibleLoss_E6F2C88B9C9886A0579C8AE04B0D2308" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.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_1F079DA1D14FE76D1BCC23120BCE76EE" 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_2A1907D7648B146BD60623120BCED558" xlink:type="locator" />
    <link:presentationArc order="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_1F079DA1D14FE76D1BCC23120BCE76EE" xlink:to="loc_us-gaap_NatureOfOperations_2A1907D7648B146BD60623120BCED558" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.liquidityservices.com/role/OrganizationNarrativeDetails" 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_0AE70A6364E70001FFF38FFFE24C6989" xlink:type="locator" />
    <link:loc xlink:href="lqdt-20180630.xsd#lqdt_NumberOfProductCategoriesOffered" xlink:label="loc_lqdt_NumberOfProductCategoriesOffered_08816D6C232A1B159A5D8FFFE24CC264" xlink:type="locator" />
    <link:presentationArc order="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_0AE70A6364E70001FFF38FFFE24C6989" xlink:to="loc_lqdt_NumberOfProductCategoriesOffered_08816D6C232A1B159A5D8FFFE24CC264" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180630.xsd#lqdt_NumberOfClients" xlink:label="loc_lqdt_NumberOfClients_DB3AB9E3F1DF5F07850A8FFFE24C180B" 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_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_0AE70A6364E70001FFF38FFFE24C6989" xlink:to="loc_lqdt_NumberOfClients_DB3AB9E3F1DF5F07850A8FFFE24C180B" 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_A5BFB2FC320EE41E60E18FFFE24DEDB0" 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_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_0AE70A6364E70001FFF38FFFE24C6989" xlink:to="loc_us-gaap_NumberOfReportableSegments_A5BFB2FC320EE41E60E18FFFE24DEDB0" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.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_DDC8B8BDC0C9EB7299A223120DD94821" 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_C9E792221FDC8F8E198523120DD99D44" xlink:type="locator" />
    <link:presentationArc order="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_DDC8B8BDC0C9EB7299A223120DD94821" xlink:to="loc_us-gaap_SegmentReportingDisclosureTextBlock_C9E792221FDC8F8E198523120DD99D44" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.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_E21DFB67CC41EB86F245DCF23ECAE3E4" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfEntityWideRevenueByMajorCustomersByReportingSegmentsTable" xlink:label="loc_us-gaap_ScheduleOfEntityWideRevenueByMajorCustomersByReportingSegmentsTable_AE64E2ED9488A0C6B1C6DCF98D6884D3" xlink:type="locator" />
    <link:presentationArc order="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_E21DFB67CC41EB86F245DCF23ECAE3E4" xlink:to="loc_us-gaap_ScheduleOfEntityWideRevenueByMajorCustomersByReportingSegmentsTable_AE64E2ED9488A0C6B1C6DCF98D6884D3" 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_B13C723076862DF3455FDCFA7845997C" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfEntityWideRevenueByMajorCustomersByReportingSegmentsTable_AE64E2ED9488A0C6B1C6DCF98D6884D3" xlink:to="loc_us-gaap_StatementGeographicalAxis_B13C723076862DF3455FDCFA7845997C" 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_9A15129BA1E268085288DCFA784B79B6" xlink:type="locator" />
    <link:presentationArc order="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_B13C723076862DF3455FDCFA7845997C" xlink:to="loc_us-gaap_SegmentGeographicalDomain_9A15129BA1E268085288DCFA784B79B6" 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_8BC3A78F7888FC393F9FDCFB07A91508" xlink:type="locator" />
    <link:presentationArc order="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_9A15129BA1E268085288DCFA784B79B6" xlink:to="loc_us-gaap_NonUsMember_8BC3A78F7888FC393F9FDCFB07A91508" 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_42B1453AB24B5F73BBDADCF98D69C052" 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_ScheduleOfEntityWideRevenueByMajorCustomersByReportingSegmentsTable_AE64E2ED9488A0C6B1C6DCF98D6884D3" xlink:to="loc_us-gaap_ConcentrationRiskByBenchmarkAxis_42B1453AB24B5F73BBDADCF98D69C052" 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_1404F22CAA4A034C512ADCF98D6F9404" xlink:type="locator" />
    <link:presentationArc order="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_42B1453AB24B5F73BBDADCF98D69C052" xlink:to="loc_us-gaap_ConcentrationRiskBenchmarkDomain_1404F22CAA4A034C512ADCF98D6F9404" 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_D22EA6588041E1F5E39BDCFA5EE49B39" xlink:type="locator" />
    <link:presentationArc order="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_1404F22CAA4A034C512ADCF98D6F9404" xlink:to="loc_us-gaap_SalesRevenueNetMember_D22EA6588041E1F5E39BDCFA5EE49B39" 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_721DD0CD17706B25242ADCF98D7010C3" 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_ScheduleOfEntityWideRevenueByMajorCustomersByReportingSegmentsTable_AE64E2ED9488A0C6B1C6DCF98D6884D3" xlink:to="loc_us-gaap_ConcentrationRiskByTypeAxis_721DD0CD17706B25242ADCF98D7010C3" 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_237466D4DB509F8893F2DCF98D705E45" xlink:type="locator" />
    <link:presentationArc order="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_721DD0CD17706B25242ADCF98D7010C3" xlink:to="loc_us-gaap_ConcentrationRiskTypeDomain_237466D4DB509F8893F2DCF98D705E45" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_GeographicConcentrationRiskMember" xlink:label="loc_us-gaap_GeographicConcentrationRiskMember_B7C94DE5D43F8634ED1BDCF9FECC1109" xlink:type="locator" />
    <link:presentationArc order="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_237466D4DB509F8893F2DCF98D705E45" xlink:to="loc_us-gaap_GeographicConcentrationRiskMember_B7C94DE5D43F8634ED1BDCF9FECC1109" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EntityWideRevenueMajorCustomerLineItems" xlink:label="loc_us-gaap_EntityWideRevenueMajorCustomerLineItems_6875B5CF541B1DDA6776DCF98D84F4BC" 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_ScheduleOfEntityWideRevenueByMajorCustomersByReportingSegmentsTable_AE64E2ED9488A0C6B1C6DCF98D6884D3" xlink:to="loc_us-gaap_EntityWideRevenueMajorCustomerLineItems_6875B5CF541B1DDA6776DCF98D84F4BC" 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_762C2D8DC2798267B133DCF23ECB33D8" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EntityWideRevenueMajorCustomerLineItems_6875B5CF541B1DDA6776DCF98D84F4BC" xlink:to="loc_us-gaap_NumberOfReportableSegments_762C2D8DC2798267B133DCF23ECB33D8" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180630.xsd#lqdt_ReportableSegmentsPercentageofRevenue" xlink:label="loc_lqdt_ReportableSegmentsPercentageofRevenue_F142071D48AAD042D6C1DCF23ECB5573" 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_EntityWideRevenueMajorCustomerLineItems_6875B5CF541B1DDA6776DCF98D84F4BC" xlink:to="loc_lqdt_ReportableSegmentsPercentageofRevenue_F142071D48AAD042D6C1DCF23ECB5573" 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_DEF911901C9BCA56824EDCF8DA8BE44E" 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_EntityWideRevenueMajorCustomerLineItems_6875B5CF541B1DDA6776DCF98D84F4BC" xlink:to="loc_us-gaap_ConcentrationRiskPercentage1_DEF911901C9BCA56824EDCF8DA8BE44E" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.liquidityservices.com/role/SegmentInformationReconciliationOfRevenueDetails" 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_F792C79425177771D8ECB989E8A2E6B4" 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_E8D7240F62E9BC350F18B989E8A24DE6" xlink:type="locator" />
    <link:presentationArc order="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_F792C79425177771D8ECB989E8A2E6B4" xlink:to="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_E8D7240F62E9BC350F18B989E8A24DE6" 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_0ED22FD24CC96F2EA60BB989E8A27C1A" xlink:type="locator" />
    <link:presentationArc order="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_E8D7240F62E9BC350F18B989E8A24DE6" xlink:to="loc_us-gaap_ConsolidationItemsAxis_0ED22FD24CC96F2EA60BB989E8A27C1A" 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_D70DE4479E745230D418B989E8A3B890" xlink:type="locator" />
    <link:presentationArc order="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_0ED22FD24CC96F2EA60BB989E8A27C1A" xlink:to="loc_us-gaap_ConsolidationItemsDomain_D70DE4479E745230D418B989E8A3B890" 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_628CD94ABB3F43358157B989E8A35677" xlink:type="locator" />
    <link:presentationArc order="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_D70DE4479E745230D418B989E8A3B890" xlink:to="loc_us-gaap_OperatingSegmentsMember_628CD94ABB3F43358157B989E8A35677" 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_752525864D392C280094B989E8A4CC54" 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_D70DE4479E745230D418B989E8A3B890" xlink:to="loc_us-gaap_CorporateNonSegmentMember_752525864D392C280094B989E8A4CC54" 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_AAE45541159BE5D72FA5B989E8A49671" 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_E8D7240F62E9BC350F18B989E8A24DE6" xlink:to="loc_us-gaap_StatementBusinessSegmentsAxis_AAE45541159BE5D72FA5B989E8A49671" 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_56D7BD151744630D65CFB989E8A4F754" xlink:type="locator" />
    <link:presentationArc order="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_AAE45541159BE5D72FA5B989E8A49671" xlink:to="loc_us-gaap_SegmentDomain_56D7BD151744630D65CFB989E8A4F754" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180630.xsd#lqdt_GovDealsMember" xlink:label="loc_lqdt_GovDealsMember_1C78FB4D426DAAF11089B989E8A4D738" xlink:type="locator" />
    <link:presentationArc order="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_56D7BD151744630D65CFB989E8A4F754" xlink:to="loc_lqdt_GovDealsMember_1C78FB4D426DAAF11089B989E8A4D738" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180630.xsd#lqdt_CAGMember" xlink:label="loc_lqdt_CAGMember_3C93D9F9B4ADAD2B1016B989E8A4B1AF" 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_56D7BD151744630D65CFB989E8A4F754" xlink:to="loc_lqdt_CAGMember_3C93D9F9B4ADAD2B1016B989E8A4B1AF" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180630.xsd#lqdt_RSCGMember" xlink:label="loc_lqdt_RSCGMember_64252392171DA989BEF7B989E8A53F05" 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_56D7BD151744630D65CFB989E8A4F754" xlink:to="loc_lqdt_RSCGMember_64252392171DA989BEF7B989E8A53F05" 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_2C69386055C072CBCE3CB989E8A50A82" 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_E8D7240F62E9BC350F18B989E8A24DE6" xlink:to="loc_us-gaap_SegmentReportingInformationLineItems_2C69386055C072CBCE3CB989E8A50A82" 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_2FA18436D47153B47BA6B989E8A5366A" xlink:type="locator" />
    <link:presentationArc order="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_2C69386055C072CBCE3CB989E8A50A82" xlink:to="loc_us-gaap_SalesRevenueNet_2FA18436D47153B47BA6B989E8A5366A" 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_E277601C5226394F7847B989E8A7DF1F" 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_SegmentReportingInformationLineItems_2C69386055C072CBCE3CB989E8A50A82" xlink:to="loc_us-gaap_GrossProfit_E277601C5226394F7847B989E8A7DF1F" 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_DB66DA1A0B36FD075024B989E8A7ECCB" 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_SegmentReportingInformationLineItems_2C69386055C072CBCE3CB989E8A50A82" xlink:to="loc_us-gaap_OperatingExpenses_DB66DA1A0B36FD075024B989E8A7ECCB" 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_03079FB7B6486E1014D1B989E8A82A3B" 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_SegmentReportingInformationLineItems_2C69386055C072CBCE3CB989E8A50A82" xlink:to="loc_us-gaap_InterestIncomeExpenseNet_03079FB7B6486E1014D1B989E8A82A3B" 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_3E300FB0DC94B13E8E0AB989E8A8A227" 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_2C69386055C072CBCE3CB989E8A50A82" xlink:to="loc_us-gaap_IncomeTaxExpenseBenefit_3E300FB0DC94B13E8E0AB989E8A8A227" 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_E471B5DC66FCF5138CECB989E8A89D67" 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_SegmentReportingInformationLineItems_2C69386055C072CBCE3CB989E8A50A82" xlink:to="loc_us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic_E471B5DC66FCF5138CECB989E8A89D67" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.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_9E04306917780BFCE50123120D9A6C00" 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_67CC7EA08AC7297D098823120D9A4F2E" xlink:type="locator" />
    <link:presentationArc order="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_9E04306917780BFCE50123120D9A6C00" xlink:to="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTextBlock_67CC7EA08AC7297D098823120D9A4F2E" 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_C4F145C16E0763934D5F23120D9A5B3B" 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_9E04306917780BFCE50123120D9A6C00" xlink:to="loc_us-gaap_ReconciliationOfRevenueFromSegmentsToConsolidatedTextBlock_C4F145C16E0763934D5F23120D9A5B3B" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.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_B55C2B2729F39C52D47E23120BFD3B0D" 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_AE6C9959356637CB98E823120BFD19DA" xlink:type="locator" />
    <link:presentationArc order="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_B55C2B2729F39C52D47E23120BFD3B0D" xlink:to="loc_us-gaap_LongTermContractsOrProgramsDisclosureTextBlock_AE6C9959356637CB98E823120BFD19DA" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.liquidityservices.com/role/SignificantContractsNarrativeDetails" 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_FF1AB8050618D2BD581FB989E9689CA8" 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_CC9EF0B01200064B517EB989E96986BC" xlink:type="locator" />
    <link:presentationArc order="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_FF1AB8050618D2BD581FB989E9689CA8" xlink:to="loc_us-gaap_ScheduleOfCollaborativeArrangementsAndNoncollaborativeArrangementTransactionsTable_CC9EF0B01200064B517EB989E96986BC" 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_266EC7422965AF6C3990B989E9699D8A" xlink:type="locator" />
    <link:presentationArc order="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_CC9EF0B01200064B517EB989E96986BC" xlink:to="loc_us-gaap_ProductOrServiceAxis_266EC7422965AF6C3990B989E9699D8A" 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_4865D4C7F09B2E7C97E1B989E9692250" xlink:type="locator" />
    <link:presentationArc order="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_266EC7422965AF6C3990B989E9699D8A" xlink:to="loc_us-gaap_ProductsAndServicesDomain_4865D4C7F09B2E7C97E1B989E9692250" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180630.xsd#lqdt_NonrollingStockSurplusContractMember" xlink:label="loc_lqdt_NonrollingStockSurplusContractMember_83001403542296A371F7B989E96ACB5B" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ProductsAndServicesDomain_4865D4C7F09B2E7C97E1B989E9692250" xlink:to="loc_lqdt_NonrollingStockSurplusContractMember_83001403542296A371F7B989E96ACB5B" 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_F401B1B40EC2EAD9650DB989E96F23D3" 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_ScheduleOfCollaborativeArrangementsAndNoncollaborativeArrangementTransactionsTable_CC9EF0B01200064B517EB989E96986BC" xlink:to="loc_us-gaap_TypeOfArrangementAxis_F401B1B40EC2EAD9650DB989E96F23D3" 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_7A6D0CCADE60EF143149B989E96F475A" xlink:type="locator" />
    <link:presentationArc order="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_F401B1B40EC2EAD9650DB989E96F23D3" xlink:to="loc_us-gaap_ArrangementsAndNonarrangementTransactionsMember_7A6D0CCADE60EF143149B989E96F475A" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180630.xsd#lqdt_SurplusContractMember" xlink:label="loc_lqdt_SurplusContractMember_712A48AE7DCAD07B0C8DB989E9702273" xlink:type="locator" />
    <link:presentationArc order="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_7A6D0CCADE60EF143149B989E96F475A" xlink:to="loc_lqdt_SurplusContractMember_712A48AE7DCAD07B0C8DB989E9702273" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180630.xsd#lqdt_ScrapContractMember" xlink:label="loc_lqdt_ScrapContractMember_CA18078A0E8DDF753EB0B989E970B4AA" 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_7A6D0CCADE60EF143149B989E96F475A" xlink:to="loc_lqdt_ScrapContractMember_CA18078A0E8DDF753EB0B989E970B4AA" 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_9EBAB65A418196CFC7FAB989E9707D24" 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_CC9EF0B01200064B517EB989E96986BC" xlink:to="loc_us-gaap_ConcentrationRiskByTypeAxis_9EBAB65A418196CFC7FAB989E9707D24" 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_0CBA012E120CAF642E4DB989E970E968" xlink:type="locator" />
    <link:presentationArc order="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_9EBAB65A418196CFC7FAB989E9707D24" xlink:to="loc_us-gaap_ConcentrationRiskTypeDomain_0CBA012E120CAF642E4DB989E970E968" 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_8667C9332CA7DED0F9E6B989E971C1ED" xlink:type="locator" />
    <link:presentationArc order="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_0CBA012E120CAF642E4DB989E970E968" xlink:to="loc_us-gaap_GovernmentContractsConcentrationRiskMember_8667C9332CA7DED0F9E6B989E971C1ED" 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_632A6416ED6853C083C0B989E971E39A" 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_CC9EF0B01200064B517EB989E96986BC" xlink:to="loc_us-gaap_ConcentrationRiskByBenchmarkAxis_632A6416ED6853C083C0B989E971E39A" 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_34E989A0A92A6CDD6DA6B989E9716EB9" xlink:type="locator" />
    <link:presentationArc order="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_632A6416ED6853C083C0B989E971E39A" xlink:to="loc_us-gaap_ConcentrationRiskBenchmarkDomain_34E989A0A92A6CDD6DA6B989E9716EB9" 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_E19477AE19747CF94F49B989E971CA9F" xlink:type="locator" />
    <link:presentationArc order="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_34E989A0A92A6CDD6DA6B989E9716EB9" xlink:to="loc_us-gaap_SalesRevenueNetMember_E19477AE19747CF94F49B989E971CA9F" 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_8A636EDF6E62A31CA910B989E972EF3F" 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_CC9EF0B01200064B517EB989E96986BC" xlink:to="loc_us-gaap_CollaborativeArrangementsAndNoncollaborativeArrangementTransactionsLineItems_8A636EDF6E62A31CA910B989E972EF3F" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180630.xsd#lqdt_NumberOfContracts" xlink:label="loc_lqdt_NumberOfContracts_DA6B308452C13D102173B993E5B981E5" xlink:type="locator" />
    <link:presentationArc order="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_8A636EDF6E62A31CA910B989E972EF3F" xlink:to="loc_lqdt_NumberOfContracts_DA6B308452C13D102173B993E5B981E5" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180630.xsd#lqdt_ContractTerm" xlink:label="loc_lqdt_ContractTerm_9FA5FDE0B430E05CEB66B989E97272F9" xlink:type="locator" />
    <link:presentationArc order="2" 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_8A636EDF6E62A31CA910B989E972EF3F" xlink:to="loc_lqdt_ContractTerm_9FA5FDE0B430E05CEB66B989E97272F9" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180630.xsd#lqdt_RevenueFromContractWithCustomerNumberOfContractExtensions" xlink:label="loc_lqdt_RevenueFromContractWithCustomerNumberOfContractExtensions_472CDD359D6A182A589DB989E9723B96" 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_8A636EDF6E62A31CA910B989E972EF3F" xlink:to="loc_lqdt_RevenueFromContractWithCustomerNumberOfContractExtensions_472CDD359D6A182A589DB989E9723B96" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180630.xsd#lqdt_RenewalOptionsExtendedTerm" xlink:label="loc_lqdt_RenewalOptionsExtendedTerm_9A664FCAC028B1062A00B989E9722E8B" xlink:type="locator" />
    <link:presentationArc order="4" 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_8A636EDF6E62A31CA910B989E972EF3F" xlink:to="loc_lqdt_RenewalOptionsExtendedTerm_9A664FCAC028B1062A00B989E9722E8B" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180630.xsd#lqdt_AdjustedPercentageOfProfitSharingDistribution" xlink:label="loc_lqdt_AdjustedPercentageOfProfitSharingDistribution_13951452F1E3735E532BB989E972D582" 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_CollaborativeArrangementsAndNoncollaborativeArrangementTransactionsLineItems_8A636EDF6E62A31CA910B989E972EF3F" xlink:to="loc_lqdt_AdjustedPercentageOfProfitSharingDistribution_13951452F1E3735E532BB989E972D582" 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_3EBBC6008AF2571D5066B989E9736403" 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_CollaborativeArrangementsAndNoncollaborativeArrangementTransactionsLineItems_8A636EDF6E62A31CA910B989E972EF3F" xlink:to="loc_us-gaap_ConcentrationRiskPercentage1_3EBBC6008AF2571D5066B989E9736403" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180630.xsd#lqdt_UsableSurplusPropertyToBePurchasedAsPercentageOfOriginalAcquisitionValue" xlink:label="loc_lqdt_UsableSurplusPropertyToBePurchasedAsPercentageOfOriginalAcquisitionValue_ED7C81C495D1D59646E2B989E973DB18" 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_8A636EDF6E62A31CA910B989E972EF3F" xlink:to="loc_lqdt_UsableSurplusPropertyToBePurchasedAsPercentageOfOriginalAcquisitionValue_ED7C81C495D1D59646E2B989E973DB18" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180630.xsd#lqdt_PercentageOfProfitsRetained" xlink:label="loc_lqdt_PercentageOfProfitsRetained_691A4F8536EA0D51DFBEB989E973BC2B" 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_8A636EDF6E62A31CA910B989E972EF3F" xlink:to="loc_lqdt_PercentageOfProfitsRetained_691A4F8536EA0D51DFBEB989E973BC2B" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180630.xsd#lqdt_AccruedExpensesAndOtherCurrentLiabilities" xlink:label="loc_lqdt_AccruedExpensesAndOtherCurrentLiabilities_2B6448DF43CCB442AA10B989E973F683" 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_8A636EDF6E62A31CA910B989E972EF3F" xlink:to="loc_lqdt_AccruedExpensesAndOtherCurrentLiabilities_2B6448DF43CCB442AA10B989E973F683" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.liquidityservices.com/role/StockholdersEquity" 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_3375A5159FE6BC00058823120BBFC44B" 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_7B8261316CAADA8528E423120BBFAD41" xlink:type="locator" />
    <link:presentationArc order="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_3375A5159FE6BC00058823120BBFC44B" xlink:to="loc_us-gaap_ShareholdersEquityAndShareBasedPaymentsTextBlock_7B8261316CAADA8528E423120BBFAD41" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.liquidityservices.com/role/StockholdersEquity2006PlanActivityDetails" 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_159544D05E8C3B59A7E123120DC916BA" 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_44A2884D21214160060B23120DC950D0" xlink:type="locator" />
    <link:presentationArc order="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_159544D05E8C3B59A7E123120DC916BA" xlink:to="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_44A2884D21214160060B23120DC950D0" 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_4B10EDB9C504113D1AF023120DC9A05C" xlink:type="locator" />
    <link:presentationArc order="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_44A2884D21214160060B23120DC950D0" xlink:to="loc_us-gaap_AwardTypeAxis_4B10EDB9C504113D1AF023120DC9A05C" 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_88BEC2A3E5448F876CF023120DC938BB" xlink:type="locator" />
    <link:presentationArc order="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_4B10EDB9C504113D1AF023120DC9A05C" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_88BEC2A3E5448F876CF023120DC938BB" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180630.xsd#lqdt_EmployeeAndNonEmployeesStockOptionMember" xlink:label="loc_lqdt_EmployeeAndNonEmployeesStockOptionMember_79A0E84A2A9EC463559A23120DC9FCAD" xlink:type="locator" />
    <link:presentationArc order="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_88BEC2A3E5448F876CF023120DC938BB" xlink:to="loc_lqdt_EmployeeAndNonEmployeesStockOptionMember_79A0E84A2A9EC463559A23120DC9FCAD" 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_13E83D7392536F5AEBFD23120DC9CE0A" 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_44A2884D21214160060B23120DC950D0" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_13E83D7392536F5AEBFD23120DC9CE0A" 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_53032BC35EBF271308DA23120DC955AC" xlink:type="locator" />
    <link:presentationArc order="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_13E83D7392536F5AEBFD23120DC9CE0A" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingRollForward_53032BC35EBF271308DA23120DC955AC" 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_665A0038067395E1081423120DC9BAFF" 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_53032BC35EBF271308DA23120DC955AC" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber_665A0038067395E1081423120DC9BAFF" 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_E05ED77E4E166C1AFD1B23120DC9AD87" 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_53032BC35EBF271308DA23120DC955AC" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross_E05ED77E4E166C1AFD1B23120DC9AD87" 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_4791DF1A1AE1F3B65A8023120DC9176B" 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_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingRollForward_53032BC35EBF271308DA23120DC955AC" xlink:to="loc_us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised_4791DF1A1AE1F3B65A8023120DC9176B" 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_FC398C398FE9D3BF9F0523120DC9C093" 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_53032BC35EBF271308DA23120DC955AC" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod_FC398C398FE9D3BF9F0523120DC9C093" 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_D45E52F055624A9A1E9723120DC9CEF3" 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_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingRollForward_53032BC35EBF271308DA23120DC955AC" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber_D45E52F055624A9A1E9723120DC9CEF3" 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_BADDCBD95EEA7B203BC223120DC91661" 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_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingRollForward_53032BC35EBF271308DA23120DC955AC" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber_BADDCBD95EEA7B203BC223120DC91661" 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_E403FB93BAF79D78A4ED23120DC9263C" 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_13E83D7392536F5AEBFD23120DC9CE0A" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePriceRollforward_E403FB93BAF79D78A4ED23120DC9263C" 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_737F67E86CC927A8A1D123120DC976C8" 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_E403FB93BAF79D78A4ED23120DC9263C" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice_737F67E86CC927A8A1D123120DC976C8" 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_ADED4E46A520DE9EE5D223120DC915A5" 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_E403FB93BAF79D78A4ED23120DC9263C" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice_ADED4E46A520DE9EE5D223120DC915A5" 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_5792FC396E863F9E82BA23120DC9FDDD" 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_E403FB93BAF79D78A4ED23120DC9263C" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice_5792FC396E863F9E82BA23120DC9FDDD" 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_3D335A983C0F0E70EE2323120DC97E70" 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_E403FB93BAF79D78A4ED23120DC9263C" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice_3D335A983C0F0E70EE2323120DC97E70" 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_D61370FD90E0055CBCD123120DC9BC77" 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_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePriceRollforward_E403FB93BAF79D78A4ED23120DC9263C" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice_D61370FD90E0055CBCD123120DC9BC77" 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_E5D1A597A75CA2F57D5223120DC97331" 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_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePriceRollforward_E403FB93BAF79D78A4ED23120DC9263C" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice_E5D1A597A75CA2F57D5223120DC97331" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.liquidityservices.com/role/StockholdersEquityNarrativeDetails" 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_66296820D961B5BDE66EE36391551727" 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_E6595F1ACE6ABAE074E3E3639155642A" xlink:type="locator" />
    <link:presentationArc order="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_66296820D961B5BDE66EE36391551727" xlink:to="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_E6595F1ACE6ABAE074E3E3639155642A" 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_F0A611B13525A913B8E6E36391559732" xlink:type="locator" />
    <link:presentationArc order="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_E6595F1ACE6ABAE074E3E3639155642A" xlink:to="loc_us-gaap_AwardTypeAxis_F0A611B13525A913B8E6E36391559732" 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_2372D6CBFE4264AB2F12E3639155091C" xlink:type="locator" />
    <link:presentationArc order="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_F0A611B13525A913B8E6E36391559732" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_2372D6CBFE4264AB2F12E3639155091C" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180630.xsd#lqdt_StockOptionsOrStockAppreciationRightsMember" xlink:label="loc_lqdt_StockOptionsOrStockAppreciationRightsMember_24A295F610C68FB3C7F0E3639155336A" xlink:type="locator" />
    <link:presentationArc order="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_2372D6CBFE4264AB2F12E3639155091C" xlink:to="loc_lqdt_StockOptionsOrStockAppreciationRightsMember_24A295F610C68FB3C7F0E3639155336A" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180630.xsd#lqdt_OtherThanStockOptionsOrStockAppreciationRightsMember" xlink:label="loc_lqdt_OtherThanStockOptionsOrStockAppreciationRightsMember_0709264DA307E38D3164E3639155E056" 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_2372D6CBFE4264AB2F12E3639155091C" xlink:to="loc_lqdt_OtherThanStockOptionsOrStockAppreciationRightsMember_0709264DA307E38D3164E3639155E056" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180630.xsd#lqdt_EmployeeAndNonEmployeesStockOptionMember" xlink:label="loc_lqdt_EmployeeAndNonEmployeesStockOptionMember_790F8B41E88C48E66428E36391556165" 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_2372D6CBFE4264AB2F12E3639155091C" xlink:to="loc_lqdt_EmployeeAndNonEmployeesStockOptionMember_790F8B41E88C48E66428E36391556165" 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_8637BE80327AA6AAEBF2E363915506B9" 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_2372D6CBFE4264AB2F12E3639155091C" xlink:to="loc_us-gaap_StockAppreciationRightsSARSMember_8637BE80327AA6AAEBF2E363915506B9" 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_D2A52ED8D3BAC48153F5E3639155ABEA" 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_2372D6CBFE4264AB2F12E3639155091C" xlink:to="loc_us-gaap_RestrictedStockMember_D2A52ED8D3BAC48153F5E3639155ABEA" 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_1E2CECD66EE5C00E0512E363915844D1" 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_E6595F1ACE6ABAE074E3E3639155642A" xlink:to="loc_us-gaap_RangeAxis_1E2CECD66EE5C00E0512E363915844D1" 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_D3DD33094D383A913C78E36391582207" xlink:type="locator" />
    <link:presentationArc order="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_1E2CECD66EE5C00E0512E363915844D1" xlink:to="loc_us-gaap_RangeMember_D3DD33094D383A913C78E36391582207" 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_8DF52588AABCEE2788E0E36391588169" xlink:type="locator" />
    <link:presentationArc order="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_D3DD33094D383A913C78E36391582207" xlink:to="loc_us-gaap_MinimumMember_8DF52588AABCEE2788E0E36391588169" 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_16D832A5EC66A4571366E36391588F71" 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_D3DD33094D383A913C78E36391582207" xlink:to="loc_us-gaap_MaximumMember_16D832A5EC66A4571366E36391588F71" 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_61357B94F28C5C215507E3639158B208" 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_E6595F1ACE6ABAE074E3E3639155642A" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_61357B94F28C5C215507E3639158B208" 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_40E555DFB4B9C2CF0113E3639158FE0A" xlink:type="locator" />
    <link:presentationArc order="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_61357B94F28C5C215507E3639158B208" xlink:to="loc_us-gaap_StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1_40E555DFB4B9C2CF0113E3639158FE0A" 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_81775EF55850AED319ADE36391589FCC" 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_61357B94F28C5C215507E3639158B208" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized_81775EF55850AED319ADE36391589FCC" 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_4DFF6004CB116AE113A6E36391583C53" 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_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_61357B94F28C5C215507E3639158B208" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfAdditionalSharesAuthorized_4DFF6004CB116AE113A6E36391583C53" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180630.xsd#lqdt_NumberOfSharesCountedForGrantsOfFullValueAwardsFromReserve" xlink:label="loc_lqdt_NumberOfSharesCountedForGrantsOfFullValueAwardsFromReserve_AB1B466609856AF50F1EE36391587C65" 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_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_61357B94F28C5C215507E3639158B208" xlink:to="loc_lqdt_NumberOfSharesCountedForGrantsOfFullValueAwardsFromReserve_AB1B466609856AF50F1EE36391587C65" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180630.xsd#lqdt_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAwardedPerPersonPerYear" xlink:label="loc_lqdt_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAwardedPerPersonPerYear_310EB41DBB5C6D37CE51E3639158B5FD" 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_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_61357B94F28C5C215507E3639158B208" xlink:to="loc_lqdt_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAwardedPerPersonPerYear_310EB41DBB5C6D37CE51E3639158B5FD" 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_F9C1D7C87CCE2DEBB3DEE36391582736" 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_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_61357B94F28C5C215507E3639158B208" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1_F9C1D7C87CCE2DEBB3DEE36391582736" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsExercised" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsExercised_BC11A6BA1A3CD00C5268E36499D63A55" 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_61357B94F28C5C215507E3639158B208" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsExercised_BC11A6BA1A3CD00C5268E36499D63A55" 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_5347B621B6AE2254996EE3639158113F" 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_61357B94F28C5C215507E3639158B208" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod_5347B621B6AE2254996EE3639158113F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsOutstandingNumber" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsOutstandingNumber_380BCAD8F9484C7B5BA5E365503FE259" 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_61357B94F28C5C215507E3639158B208" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsOutstandingNumber_380BCAD8F9484C7B5BA5E365503FE259" 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_18A06C582417B5B17223E363915AF605" 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_61357B94F28C5C215507E3639158B208" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_18A06C582417B5B17223E363915AF605" 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_61D53194020883540111E363915AF62F" 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_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_61357B94F28C5C215507E3639158B208" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_61D53194020883540111E363915AF62F" 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_5935909F889A3968135EE363915A5F2E" 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_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_61357B94F28C5C215507E3639158B208" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue_5935909F889A3968135EE363915A5F2E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2" xlink:label="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2_D7687303D5406DC12B54E363915AA955" 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_61357B94F28C5C215507E3639158B208" xlink:to="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2_D7687303D5406DC12B54E363915AA955" 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_CF555C98227880EBC959E363915AA156" 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_61357B94F28C5C215507E3639158B208" xlink:to="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1_CF555C98227880EBC959E363915AA156" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1" xlink:label="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1_A96ADD7861F7DA432460E363915AE335" 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_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_61357B94F28C5C215507E3639158B208" xlink:to="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1_A96ADD7861F7DA432460E363915AE335" 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_17723315C763E2A053C2E363915A6668" 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_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_61357B94F28C5C215507E3639158B208" xlink:to="loc_us-gaap_SharePrice_17723315C763E2A053C2E363915A6668" 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_EBFE645D25FC72390173E363915A6620" 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_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_61357B94F28C5C215507E3639158B208" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateMinimum_EBFE645D25FC72390173E363915A6620" 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_057415288EA18A16A175E363915A8359" 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_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_61357B94F28C5C215507E3639158B208" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateMaximum_057415288EA18A16A175E363915A8359" 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_0E46541B8667175697B9E363915A3E69" 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_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_61357B94F28C5C215507E3639158B208" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate_0E46541B8667175697B9E363915A3E69" 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_A5057EE96FDE7876412FE363915AA4C1" 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_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_61357B94F28C5C215507E3639158B208" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMinimum_A5057EE96FDE7876412FE363915AA4C1" 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_138DE118AB5084119672E363915ADAE6" 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_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_61357B94F28C5C215507E3639158B208" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMaximum_138DE118AB5084119672E363915ADAE6" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180630.xsd#lqdt_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsForfeitureRate" xlink:label="loc_lqdt_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsForfeitureRate_BBD45A05195A90B613D2E363915AFA24" 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_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_61357B94F28C5C215507E3639158B208" xlink:to="loc_lqdt_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsForfeitureRate_BBD45A05195A90B613D2E363915AFA24" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180630.xsd#lqdt_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedTotalIntrinsicValue" xlink:label="loc_lqdt_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedTotalIntrinsicValue_45F9C1547641062CD298E363915AD89D" xlink:type="locator" />
    <link:presentationArc order="23" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_61357B94F28C5C215507E3639158B208" xlink:to="loc_lqdt_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedTotalIntrinsicValue_45F9C1547641062CD298E363915AD89D" 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_0A260FF8F5CB85FD15F2E363915DA0A4" 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_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_61357B94F28C5C215507E3639158B208" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsOutstandingWeightedAverageRemainingContractualTerms_0A260FF8F5CB85FD15F2E363915DA0A4" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.liquidityservices.com/role/StockholdersEquityRestrictedShareActivityDetails" 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_2124DF1B4886A8BDBC4F23120C5BAAFC" 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_C700747E8B4251A4A83923120C5BC5A9" xlink:type="locator" />
    <link:presentationArc order="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_2124DF1B4886A8BDBC4F23120C5BAAFC" xlink:to="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_C700747E8B4251A4A83923120C5BC5A9" 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_7350870C4187A535F3D123120C5B852C" xlink:type="locator" />
    <link:presentationArc order="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_C700747E8B4251A4A83923120C5BC5A9" xlink:to="loc_us-gaap_AwardTypeAxis_7350870C4187A535F3D123120C5B852C" 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_24EE8EDE8B69C3FD1B0323120C5B24B4" xlink:type="locator" />
    <link:presentationArc order="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_7350870C4187A535F3D123120C5B852C" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_24EE8EDE8B69C3FD1B0323120C5B24B4" 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_50478438C08357BF3D3F23120C5B601F" xlink:type="locator" />
    <link:presentationArc order="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_24EE8EDE8B69C3FD1B0323120C5B24B4" xlink:to="loc_us-gaap_RestrictedStockMember_50478438C08357BF3D3F23120C5B601F" 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_1C4F87CD8455D6C675E523120C6B82A7" 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_C700747E8B4251A4A83923120C5BC5A9" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_1C4F87CD8455D6C675E523120C6B82A7" 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_D334BC34A70F2E56D52323120C6B3546" xlink:type="locator" />
    <link:presentationArc order="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_1C4F87CD8455D6C675E523120C6B82A7" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_D334BC34A70F2E56D52323120C6B3546" 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_6B17886B2105BD2D28ED23120C6B040C" 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_D334BC34A70F2E56D52323120C6B3546" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber_6B17886B2105BD2D28ED23120C6B040C" 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_643B0103A3C30D07448F23120C6BF66D" 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_D334BC34A70F2E56D52323120C6B3546" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_643B0103A3C30D07448F23120C6BF66D" 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_69BAEEE3E0FF261CEA3423120C6B9C83" 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_D334BC34A70F2E56D52323120C6B3546" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod_69BAEEE3E0FF261CEA3423120C6B9C83" 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_B663C161F83FC5331B0D23120C6B603B" 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_D334BC34A70F2E56D52323120C6B3546" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod_B663C161F83FC5331B0D23120C6B603B" 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_539284A7807402D8B9BC23120C6B11B2" 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_D334BC34A70F2E56D52323120C6B3546" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber_539284A7807402D8B9BC23120C6B11B2" 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_B62A3C85CD5E2786272423120C6B9CFF" 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_1C4F87CD8455D6C675E523120C6B82A7" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_B62A3C85CD5E2786272423120C6B9CFF" 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_67C77B01E46C43D75EC223120C6BF7F3" 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_B62A3C85CD5E2786272423120C6B9CFF" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue_67C77B01E46C43D75EC223120C6BF7F3" 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_2194D6ACEE85EB4EB2F623120C6B1BD7" 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_B62A3C85CD5E2786272423120C6B9CFF" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_2194D6ACEE85EB4EB2F623120C6B1BD7" 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_7889E9D3087A654DFF4523120C6B5E5E" 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_B62A3C85CD5E2786272423120C6B9CFF" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue_7889E9D3087A654DFF4523120C6B5E5E" 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_8C4D4F1F2DD0F8FA487523120C6BC04F" 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_B62A3C85CD5E2786272423120C6B9CFF" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue_8C4D4F1F2DD0F8FA487523120C6BC04F" 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_1068A9BBFB5D11D385F023120C6B8159" 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_B62A3C85CD5E2786272423120C6B9CFF" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue_1068A9BBFB5D11D385F023120C6B8159" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.liquidityservices.com/role/StockholdersEquityTables" 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_31F1F7C9BE1732B97DBA23120DAAA88B" 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_D5719C464460011BFD8823120DAAF398" xlink:type="locator" />
    <link:presentationArc order="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_31F1F7C9BE1732B97DBA23120DAAA88B" xlink:to="loc_us-gaap_ScheduleOfShareBasedCompensationStockOptionsActivityTableTextBlock_D5719C464460011BFD8823120DAAF398" 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_CFD294FAB4166C1FB01F23120DAA9F2B" 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_31F1F7C9BE1732B97DBA23120DAAA88B" xlink:to="loc_us-gaap_ScheduleOfNonvestedShareActivityTableTextBlock_CFD294FAB4166C1FB01F23120DAA9F2B" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.liquidityservices.com/role/SubsequentEvent" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SubsequentEventsAbstract" xlink:label="loc_us-gaap_SubsequentEventsAbstract_C4100EF2240AEEF65AC68B6F72762108" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SubsequentEventsTextBlock" xlink:label="loc_us-gaap_SubsequentEventsTextBlock_2B489155A73155064C448B6F7525E3CE" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SubsequentEventsAbstract_C4100EF2240AEEF65AC68B6F72762108" xlink:to="loc_us-gaap_SubsequentEventsTextBlock_2B489155A73155064C448B6F7525E3CE" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.liquidityservices.com/role/SubsequentEventNarrativeDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SubsequentEventsAbstract" xlink:label="loc_us-gaap_SubsequentEventsAbstract_0049D2D7014149CCC38AD6A2ACDE24F1" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SubsequentEventTable" xlink:label="loc_us-gaap_SubsequentEventTable_7CC60DB2A393EFEDA4CAD6A2ACDFB5A5" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SubsequentEventsAbstract_0049D2D7014149CCC38AD6A2ACDE24F1" xlink:to="loc_us-gaap_SubsequentEventTable_7CC60DB2A393EFEDA4CAD6A2ACDFB5A5" 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_814A0DC24B084D4FC569D6A2ACDFD1D1" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SubsequentEventTable_7CC60DB2A393EFEDA4CAD6A2ACDFB5A5" xlink:to="loc_us-gaap_SubsequentEventTypeAxis_814A0DC24B084D4FC569D6A2ACDFD1D1" 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_91E3AA9932C5755D5282D6A2ACE02F9E" xlink:type="locator" />
    <link:presentationArc order="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_814A0DC24B084D4FC569D6A2ACDFD1D1" xlink:to="loc_us-gaap_SubsequentEventTypeDomain_91E3AA9932C5755D5282D6A2ACE02F9E" 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_A3223F608482294519AFD6A2ACE0006F" xlink:type="locator" />
    <link:presentationArc order="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_91E3AA9932C5755D5282D6A2ACE02F9E" xlink:to="loc_us-gaap_SubsequentEventMember_A3223F608482294519AFD6A2ACE0006F" 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_91E9EC5FE6C23D57AB44D6B6DAADA084" 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_SubsequentEventTable_7CC60DB2A393EFEDA4CAD6A2ACDFB5A5" xlink:to="loc_us-gaap_RangeAxis_91E9EC5FE6C23D57AB44D6B6DAADA084" 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_14A80D1019E21A77AD73D6B6DAC4AF62" xlink:type="locator" />
    <link:presentationArc order="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_91E9EC5FE6C23D57AB44D6B6DAADA084" xlink:to="loc_us-gaap_RangeMember_14A80D1019E21A77AD73D6B6DAC4AF62" 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_D67A2ACD4A2EC0C119E0D6B6FA0EFC3C" xlink:type="locator" />
    <link:presentationArc order="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_14A80D1019E21A77AD73D6B6DAC4AF62" xlink:to="loc_us-gaap_MaximumMember_D67A2ACD4A2EC0C119E0D6B6FA0EFC3C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SubsequentEventLineItems" xlink:label="loc_us-gaap_SubsequentEventLineItems_427ED87A03AC1C1750B7D6A2ACE132B6" 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_SubsequentEventTable_7CC60DB2A393EFEDA4CAD6A2ACDFB5A5" xlink:to="loc_us-gaap_SubsequentEventLineItems_427ED87A03AC1C1750B7D6A2ACE132B6" 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_C14A8C44CA4AD868641CD6A2ACE1EE0C" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SubsequentEventLineItems_427ED87A03AC1C1750B7D6A2ACE132B6" xlink:to="loc_us-gaap_PaymentsToAcquireBusinessesGross_C14A8C44CA4AD868641CD6A2ACE1EE0C" 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_CD3197DB3FABAD227335D6A2ACE126B4" 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_SubsequentEventLineItems_427ED87A03AC1C1750B7D6A2ACE132B6" xlink:to="loc_us-gaap_BusinessCombinationConsiderationTransferredEquityInterestsIssuedAndIssuable_CD3197DB3FABAD227335D6A2ACE126B4" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessCombinationContingentConsiderationLiabilityNoncurrent" xlink:label="loc_us-gaap_BusinessCombinationContingentConsiderationLiabilityNoncurrent_FB6DE27A0D31426CABB1D6ABD526E82D" 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_SubsequentEventLineItems_427ED87A03AC1C1750B7D6A2ACE132B6" xlink:to="loc_us-gaap_BusinessCombinationContingentConsiderationLiabilityNoncurrent_FB6DE27A0D31426CABB1D6ABD526E82D" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.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_97DB6E9B5D6E8C84553923120DD90A46" 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_B1C76657DF60A246B1B923120DD9C49A" xlink:type="locator" />
    <link:presentationArc order="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_97DB6E9B5D6E8C84553923120DD90A46" xlink:to="loc_us-gaap_SignificantAccountingPoliciesTextBlock_B1C76657DF60A246B1B923120DD9C49A" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.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_352B4F376263EE261CD68AE04BBC411F" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EarningsPerShareAbstract" xlink:label="loc_us-gaap_EarningsPerShareAbstract_47B04C1D7916544FE8608AE04BBCC55A" xlink:type="locator" />
    <link:presentationArc order="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_352B4F376263EE261CD68AE04BBC411F" xlink:to="loc_us-gaap_EarningsPerShareAbstract_47B04C1D7916544FE8608AE04BBCC55A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_WeightedAverageNumberOfSharesOutstandingDilutedDisclosureItemsAbstract" xlink:label="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingDilutedDisclosureItemsAbstract_1185ED6C744E874D3E4C8AE04BBC82F7" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EarningsPerShareAbstract_47B04C1D7916544FE8608AE04BBCC55A" xlink:to="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingDilutedDisclosureItemsAbstract_1185ED6C744E874D3E4C8AE04BBC82F7" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_WeightedAverageNumberOfSharesOutstandingBasic" xlink:label="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_8DEB61F10D4BC8C412158AE04BBD6069" 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_WeightedAverageNumberOfSharesOutstandingDilutedDisclosureItemsAbstract_1185ED6C744E874D3E4C8AE04BBC82F7" xlink:to="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_8DEB61F10D4BC8C412158AE04BBD6069" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_WeightedAverageNumberDilutedSharesOutstandingAdjustment" xlink:label="loc_us-gaap_WeightedAverageNumberDilutedSharesOutstandingAdjustment_1970F2D8EC4EDC9249218AE04BBD0520" 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_WeightedAverageNumberOfSharesOutstandingDilutedDisclosureItemsAbstract_1185ED6C744E874D3E4C8AE04BBC82F7" xlink:to="loc_us-gaap_WeightedAverageNumberDilutedSharesOutstandingAdjustment_1970F2D8EC4EDC9249218AE04BBD0520" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding" xlink:label="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_734CADDBC25757ECC8CA8AE04BBD1077" 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_WeightedAverageNumberOfSharesOutstandingDilutedDisclosureItemsAbstract_1185ED6C744E874D3E4C8AE04BBC82F7" xlink:to="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_734CADDBC25757ECC8CA8AE04BBD1077" 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_4CE41397175B62138A318AE04BBDA487" xlink:type="locator" />
    <link:presentationArc order="2" 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_EarningsPerShareAbstract_47B04C1D7916544FE8608AE04BBCC55A" xlink:to="loc_us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic_4CE41397175B62138A318AE04BBDA487" 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_715BD53DADE17A59204C8AE04BBD57AA" 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_EarningsPerShareAbstract_47B04C1D7916544FE8608AE04BBCC55A" xlink:to="loc_us-gaap_EarningsPerShareBasicAndDiluted_715BD53DADE17A59204C8AE04BBD57AA" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.liquidityservices.com/role/SummaryOfSignificantAccountingPoliciesNarrativeDetails" 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_0A31CD093450049D86B9B989E9AF8AC5" 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_6F74DE756420BDF027D3B989E9AF0F5C" xlink:type="locator" />
    <link:presentationArc order="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_0A31CD093450049D86B9B989E9AF8AC5" xlink:to="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_6F74DE756420BDF027D3B989E9AF0F5C" 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_23E6BE1736C8D5E8E67DB989E9B060AE" xlink:type="locator" />
    <link:presentationArc order="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_6F74DE756420BDF027D3B989E9AF0F5C" xlink:to="loc_us-gaap_AdjustmentsForNewAccountingPronouncementsAxis_23E6BE1736C8D5E8E67DB989E9B060AE" 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_E8BA9671AE046DCC8449B989E9B09837" xlink:type="locator" />
    <link:presentationArc order="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_23E6BE1736C8D5E8E67DB989E9B060AE" xlink:to="loc_us-gaap_TypeOfAdoptionMember_E8BA9671AE046DCC8449B989E9B09837" 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_1AA6BDBEF66C58C0C48EB989E9B088A5" xlink:type="locator" />
    <link:presentationArc order="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_E8BA9671AE046DCC8449B989E9B09837" xlink:to="loc_us-gaap_AccountingStandardsUpdate201609Member_1AA6BDBEF66C58C0C48EB989E9B088A5" 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_C5C05D94312909BA8588B989E9B1407B" 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_6F74DE756420BDF027D3B989E9AF0F5C" xlink:to="loc_us-gaap_StatementEquityComponentsAxis_C5C05D94312909BA8588B989E9B1407B" 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_32A9980A731405534C40B989E9B15D61" xlink:type="locator" />
    <link:presentationArc order="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_C5C05D94312909BA8588B989E9B1407B" xlink:to="loc_us-gaap_EquityComponentDomain_32A9980A731405534C40B989E9B15D61" 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_2FDE2012B85F1A09F9DEB989E9B1D406" xlink:type="locator" />
    <link:presentationArc order="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_32A9980A731405534C40B989E9B15D61" xlink:to="loc_us-gaap_RetainedEarningsMember_2FDE2012B85F1A09F9DEB989E9B1D406" 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_B8A14DB896871DC8A721B989E9B297DE" 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_6F74DE756420BDF027D3B989E9AF0F5C" xlink:to="loc_us-gaap_ScheduleOfReceivablesWithImputedInterestNameOfReceivableWithImputedInterestAxis_B8A14DB896871DC8A721B989E9B297DE" 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_E8A61C7312B00AB1D296B989E9B2D28D" xlink:type="locator" />
    <link:presentationArc order="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_B8A14DB896871DC8A721B989E9B297DE" xlink:to="loc_us-gaap_NameOfReceivableWithImputedInterestDomain_E8A61C7312B00AB1D296B989E9B2D28D" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180630.xsd#lqdt_TanagerAcquisitionsPromissoryNoteMember" xlink:label="loc_lqdt_TanagerAcquisitionsPromissoryNoteMember_95E9FBF1258331686491B989E9B2035D" xlink:type="locator" />
    <link:presentationArc order="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_E8A61C7312B00AB1D296B989E9B2D28D" xlink:to="loc_lqdt_TanagerAcquisitionsPromissoryNoteMember_95E9FBF1258331686491B989E9B2035D" 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_E40E9E19F5B12D7779DDB989E9B23371" 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_6F74DE756420BDF027D3B989E9AF0F5C" xlink:to="loc_us-gaap_BalanceSheetLocationAxis_E40E9E19F5B12D7779DDB989E9B23371" 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_352B56BF3D8CDD811BBCB989E9B3D071" xlink:type="locator" />
    <link:presentationArc order="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_E40E9E19F5B12D7779DDB989E9B23371" xlink:to="loc_us-gaap_BalanceSheetLocationDomain_352B56BF3D8CDD811BBCB989E9B3D071" 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_C8D86A120D65C598B43CB989E9B312C1" xlink:type="locator" />
    <link:presentationArc order="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_352B56BF3D8CDD811BBCB989E9B3D071" xlink:to="loc_us-gaap_OtherAssetsMember_C8D86A120D65C598B43CB989E9B312C1" 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_D1576FF95C82DC7E643DB989E9B307F9" 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_352B56BF3D8CDD811BBCB989E9B3D071" xlink:to="loc_us-gaap_PrepaidExpensesAndOtherCurrentAssetsMember_D1576FF95C82DC7E643DB989E9B307F9" 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_1EAE77232B21A41EFEC4B989E9B3DAB2" 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_ScheduleOfBusinessAcquisitionsByAcquisitionTable_6F74DE756420BDF027D3B989E9AF0F5C" xlink:to="loc_us-gaap_ConcentrationRiskByTypeAxis_1EAE77232B21A41EFEC4B989E9B3DAB2" 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_AB83349D56FDF7C3E94EB989E9B30009" xlink:type="locator" />
    <link:presentationArc order="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_1EAE77232B21A41EFEC4B989E9B3DAB2" xlink:to="loc_us-gaap_ConcentrationRiskTypeDomain_AB83349D56FDF7C3E94EB989E9B30009" 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_EF17C30D78F2969B9C4EB989E9B4950E" xlink:type="locator" />
    <link:presentationArc order="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_AB83349D56FDF7C3E94EB989E9B30009" xlink:to="loc_us-gaap_GovernmentContractsConcentrationRiskMember_EF17C30D78F2969B9C4EB989E9B4950E" 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_BC79666A13BE7963377DB989E9B45EB2" 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_AB83349D56FDF7C3E94EB989E9B30009" xlink:to="loc_us-gaap_SupplierConcentrationRiskMember_BC79666A13BE7963377DB989E9B45EB2" 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_AD7B89C6031C8069120FB989E9B96861" 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_ScheduleOfBusinessAcquisitionsByAcquisitionTable_6F74DE756420BDF027D3B989E9AF0F5C" xlink:to="loc_us-gaap_ConcentrationRiskByBenchmarkAxis_AD7B89C6031C8069120FB989E9B96861" 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_E2853F49346C48625971B989E9BAB485" xlink:type="locator" />
    <link:presentationArc order="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_AD7B89C6031C8069120FB989E9B96861" xlink:to="loc_us-gaap_ConcentrationRiskBenchmarkDomain_E2853F49346C48625971B989E9BAB485" 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_68C09E182E26F7266C69B989E9BAD77C" xlink:type="locator" />
    <link:presentationArc order="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_E2853F49346C48625971B989E9BAB485" xlink:to="loc_us-gaap_SalesRevenueNetMember_68C09E182E26F7266C69B989E9BAD77C" 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_72B6A9A1844A8CD642D5B989E9BAB4F6" 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_E2853F49346C48625971B989E9BAB485" xlink:to="loc_us-gaap_CostOfGoodsTotalMember_72B6A9A1844A8CD642D5B989E9BAB4F6" 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_9ADEA18E088A157F1AEEB989E9BA30C7" 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_ScheduleOfBusinessAcquisitionsByAcquisitionTable_6F74DE756420BDF027D3B989E9AF0F5C" xlink:to="loc_us-gaap_TypeOfArrangementAxis_9ADEA18E088A157F1AEEB989E9BA30C7" 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_00CB99FBEF8246896FFCB989E9BB0ADB" xlink:type="locator" />
    <link:presentationArc order="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_9ADEA18E088A157F1AEEB989E9BA30C7" xlink:to="loc_us-gaap_ArrangementsAndNonarrangementTransactionsMember_00CB99FBEF8246896FFCB989E9BB0ADB" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180630.xsd#lqdt_SurplusContractMember" xlink:label="loc_lqdt_SurplusContractMember_7A9BF63F88B5A5B09A87B989E9BB548B" xlink:type="locator" />
    <link:presentationArc order="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_00CB99FBEF8246896FFCB989E9BB0ADB" xlink:to="loc_lqdt_SurplusContractMember_7A9BF63F88B5A5B09A87B989E9BB548B" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180630.xsd#lqdt_ScrapContractMember" xlink:label="loc_lqdt_ScrapContractMember_B8B0CD08812B3EED70C3B989E9BB047E" 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_00CB99FBEF8246896FFCB989E9BB0ADB" xlink:to="loc_lqdt_ScrapContractMember_B8B0CD08812B3EED70C3B989E9BB047E" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180630.xsd#lqdt_ContractWithCommercialClientMember" xlink:label="loc_lqdt_ContractWithCommercialClientMember_2F0FD7CBABFFE886BA67B989E9BB894F" 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_00CB99FBEF8246896FFCB989E9BB0ADB" xlink:to="loc_lqdt_ContractWithCommercialClientMember_2F0FD7CBABFFE886BA67B989E9BB894F" 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_A8AD2F83FF6D9440D942B989E9BC0B0C" 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_ScheduleOfBusinessAcquisitionsByAcquisitionTable_6F74DE756420BDF027D3B989E9AF0F5C" xlink:to="loc_us-gaap_BusinessAcquisitionLineItems_A8AD2F83FF6D9440D942B989E9BC0B0C" 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_7A31C075117ADAB187CAB989E9BC72FC" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_A8AD2F83FF6D9440D942B989E9BC0B0C" xlink:to="loc_us-gaap_CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption_7A31C075117ADAB187CAB989E9BC72FC" 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_08EF37AB4966D7F9A854B989E9BCDD8E" 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_A8AD2F83FF6D9440D942B989E9BC0B0C" xlink:to="loc_us-gaap_ReceivableWithImputedInterestFaceAmount_08EF37AB4966D7F9A854B989E9BCDD8E" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180630.xsd#lqdt_ReceivableWithImputedInterestTerm" xlink:label="loc_lqdt_ReceivableWithImputedInterestTerm_1AD405A6B82C7E3C414EB989E9BC9146" 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_A8AD2F83FF6D9440D942B989E9BC0B0C" xlink:to="loc_lqdt_ReceivableWithImputedInterestTerm_1AD405A6B82C7E3C414EB989E9BC9146" 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_202E7E7A3A3A7E94E9F9B989E9BCCDD8" 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_A8AD2F83FF6D9440D942B989E9BC0B0C" xlink:to="loc_us-gaap_ProceedsFromCollectionOfNotesReceivable_202E7E7A3A3A7E94E9F9B989E9BCCDD8" 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_1271C0F7B520527376FDB989E9BD8A22" 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_A8AD2F83FF6D9440D942B989E9BC0B0C" xlink:to="loc_us-gaap_ReceivableWithImputedInterestNetAmount_1271C0F7B520527376FDB989E9BD8A22" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180630.xsd#lqdt_NumberOfContracts" xlink:label="loc_lqdt_NumberOfContracts_3D64C6FB85319416FA0EB9934683A8E9" 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_A8AD2F83FF6D9440D942B989E9BC0B0C" xlink:to="loc_lqdt_NumberOfContracts_3D64C6FB85319416FA0EB9934683A8E9" 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_1099F4E43407E66785E0B989E9BD9963" 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_A8AD2F83FF6D9440D942B989E9BC0B0C" xlink:to="loc_us-gaap_ConcentrationRiskPercentage1_1099F4E43407E66785E0B989E9BD9963" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.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_67E710BFAD5063AE916423120D7B3EF0" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BasisOfAccountingPolicyPolicyTextBlock" xlink:label="loc_us-gaap_BasisOfAccountingPolicyPolicyTextBlock_9ABD457F3041570EB74E23120D7B8C45" xlink:type="locator" />
    <link:presentationArc order="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_67E710BFAD5063AE916423120D7B3EF0" xlink:to="loc_us-gaap_BasisOfAccountingPolicyPolicyTextBlock_9ABD457F3041570EB74E23120D7B8C45" 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_7CF5B9F90CABFBC74A8F23120D7BA707" 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_67E710BFAD5063AE916423120D7B3EF0" xlink:to="loc_us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock_7CF5B9F90CABFBC74A8F23120D7BA707" 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_6465BBDC461C2F4407E723120D7B1B04" 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_67E710BFAD5063AE916423120D7B3EF0" xlink:to="loc_us-gaap_ReceivablesPolicyTextBlock_6465BBDC461C2F4407E723120D7B1B04" 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_CB45601B821FEAFF592323120D7B9B50" 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_67E710BFAD5063AE916423120D7B3EF0" xlink:to="loc_us-gaap_ConcentrationRiskCreditRisk_CB45601B821FEAFF592323120D7B9B50" 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_90A0419E267730DF8AB123120D7BAA21" 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_67E710BFAD5063AE916423120D7B3EF0" xlink:to="loc_us-gaap_EarningsPerSharePolicyTextBlock_90A0419E267730DF8AB123120D7BAA21" 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_1416C18CF7F45F4AC61623120D7BDA12" 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_67E710BFAD5063AE916423120D7B3EF0" xlink:to="loc_us-gaap_ShareBasedCompensationOptionAndIncentivePlansPolicy_1416C18CF7F45F4AC61623120D7BDA12" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.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_8B4EEF627BF9731E85EC23120D8B2EA9" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock" xlink:label="loc_us-gaap_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock_FF77BAC75197541434E323120D8B08A3" xlink:type="locator" />
    <link:presentationArc order="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_8B4EEF627BF9731E85EC23120D8B2EA9" xlink:to="loc_us-gaap_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock_FF77BAC75197541434E323120D8B08A3" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.liquidityservices.com/role/UnauditedConsolidatedStatementsOfCashFlows" 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_482BE2EF144A123EEC31F18EA183A8B5" 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_BB0718FA97032CFD87AEF18EA1846A91" xlink:type="locator" />
    <link:presentationArc order="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_482BE2EF144A123EEC31F18EA183A8B5" xlink:to="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_BB0718FA97032CFD87AEF18EA1846A91" 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_0E05A8B50CB0E04C7F8CF18EA1852579" xlink:type="locator" />
    <link:presentationArc order="1" 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_NetCashProvidedByUsedInOperatingActivitiesAbstract_BB0718FA97032CFD87AEF18EA1846A91" xlink:to="loc_us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic_0E05A8B50CB0E04C7F8CF18EA1852579" 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_E78F1F94A379B8E0263CF18EA186E232" 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_BB0718FA97032CFD87AEF18EA1846A91" xlink:to="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_E78F1F94A379B8E0263CF18EA186E232" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DepreciationAndAmortization" xlink:label="loc_us-gaap_DepreciationAndAmortization_5C0444B1C76E8326BC63F18EA186BE65" xlink:type="locator" />
    <link:presentationArc order="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_E78F1F94A379B8E0263CF18EA186E232" xlink:to="loc_us-gaap_DepreciationAndAmortization_5C0444B1C76E8326BC63F18EA186BE65" 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_D634963AAB541E8E6857F18EA1872D86" 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_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_E78F1F94A379B8E0263CF18EA186E232" xlink:to="loc_us-gaap_ShareBasedCompensation_D634963AAB541E8E6857F18EA1872D86" 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_E75B77BA452FE2E0478BF18EA187F586" xlink:type="locator" />
    <link:presentationArc order="3" 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_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_E78F1F94A379B8E0263CF18EA186E232" xlink:to="loc_us-gaap_InventoryWriteDown_E75B77BA452FE2E0478BF18EA187F586" 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_6C4C5C73F19A8E3A507EF18EA1870F93" 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_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_E78F1F94A379B8E0263CF18EA186E232" xlink:to="loc_us-gaap_ProvisionForDoubtfulAccounts_6C4C5C73F19A8E3A507EF18EA1870F93" 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_E9C6E7BBB1054680354CF18EA1885A70" 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_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_E78F1F94A379B8E0263CF18EA186E232" xlink:to="loc_us-gaap_DeferredIncomeTaxExpenseBenefit_E9C6E7BBB1054680354CF18EA1885A70" 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_4CA6662760A19B39D516F18EA1899364" 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_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_E78F1F94A379B8E0263CF18EA186E232" xlink:to="loc_us-gaap_ImpairmentOfIntangibleAssetsFinitelived_4CA6662760A19B39D516F18EA1899364" 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_A6E23E8E5F72F52A8A5BF18EA189DFC4" xlink:type="locator" />
    <link:presentationArc order="7" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_E78F1F94A379B8E0263CF18EA186E232" xlink:to="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisChangeInUnrealizedGainLoss_A6E23E8E5F72F52A8A5BF18EA189DFC4" 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_25EBF071CAB597AB3241F18EA189646B" 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_E78F1F94A379B8E0263CF18EA186E232" xlink:to="loc_us-gaap_GainLossOnSaleOfPropertyPlantEquipment_25EBF071CAB597AB3241F18EA189646B" 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_990BDAB8AB8852BCD067F18EA189F073" 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_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_E78F1F94A379B8E0263CF18EA186E232" xlink:to="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_990BDAB8AB8852BCD067F18EA189F073" 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_517AF70AD8A88AE0A1E2F18EA18A1A47" 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_990BDAB8AB8852BCD067F18EA189F073" xlink:to="loc_us-gaap_IncreaseDecreaseInAccountsReceivable_517AF70AD8A88AE0A1E2F18EA18A1A47" 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_CF594939BFDFB50AE2C3F18EA18AA762" 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_990BDAB8AB8852BCD067F18EA189F073" xlink:to="loc_us-gaap_IncreaseDecreaseInInventories_CF594939BFDFB50AE2C3F18EA18AA762" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180630.xsd#lqdt_IncreaseDecreaseInPrepaidExpensesAndDeferredTaxes" xlink:label="loc_lqdt_IncreaseDecreaseInPrepaidExpensesAndDeferredTaxes_2AE22010C4632188090CF18EA18B271D" 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_990BDAB8AB8852BCD067F18EA189F073" xlink:to="loc_lqdt_IncreaseDecreaseInPrepaidExpensesAndDeferredTaxes_2AE22010C4632188090CF18EA18B271D" 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_146B225501EEA116F65DF18EA18BDFBF" 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_990BDAB8AB8852BCD067F18EA189F073" xlink:to="loc_us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets_146B225501EEA116F65DF18EA18BDFBF" 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_DD5F5937DAA2BAA136CFF18EA18B52F3" 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_990BDAB8AB8852BCD067F18EA189F073" xlink:to="loc_us-gaap_IncreaseDecreaseInAccountsPayable_DD5F5937DAA2BAA136CFF18EA18B52F3" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncreaseDecreaseInAccruedLiabilitiesAndOtherOperatingLiabilities" xlink:label="loc_us-gaap_IncreaseDecreaseInAccruedLiabilitiesAndOtherOperatingLiabilities_32749B5D1361040ED851F18EA18C352D" 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_990BDAB8AB8852BCD067F18EA189F073" xlink:to="loc_us-gaap_IncreaseDecreaseInAccruedLiabilitiesAndOtherOperatingLiabilities_32749B5D1361040ED851F18EA18C352D" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180630.xsd#lqdt_IncreaseDecreaseInProfitSharingDistributionsPayable" xlink:label="loc_lqdt_IncreaseDecreaseInProfitSharingDistributionsPayable_402EECBC42939D21A890F18EA18C56A6" 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_990BDAB8AB8852BCD067F18EA189F073" xlink:to="loc_lqdt_IncreaseDecreaseInProfitSharingDistributionsPayable_402EECBC42939D21A890F18EA18C56A6" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180630.xsd#lqdt_IncreaseDecreaseInPayablesToSellers" xlink:label="loc_lqdt_IncreaseDecreaseInPayablesToSellers_00F670FD8D6609ACBB12F18EA18C5EB4" 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_990BDAB8AB8852BCD067F18EA189F073" xlink:to="loc_lqdt_IncreaseDecreaseInPayablesToSellers_00F670FD8D6609ACBB12F18EA18C5EB4" 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_3C159F6F2CC352D86F87F18EA18DEC5B" 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_990BDAB8AB8852BCD067F18EA189F073" xlink:to="loc_us-gaap_IncreaseDecreaseInOtherOperatingLiabilities_3C159F6F2CC352D86F87F18EA18DEC5B" 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_35EB3FC073FBDD85471DF18EA18D04F5" 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_NetCashProvidedByUsedInOperatingActivitiesAbstract_BB0718FA97032CFD87AEF18EA1846A91" xlink:to="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_35EB3FC073FBDD85471DF18EA18D04F5" 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_D4DE29CAF6689059B013F18EA18E85FA" 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_482BE2EF144A123EEC31F18EA183A8B5" xlink:to="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperationsAbstract_D4DE29CAF6689059B013F18EA18E85FA" 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_65111BD1A25BEC1DB152F18EA18EB656" xlink:type="locator" />
    <link:presentationArc order="1" 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_NetCashProvidedByUsedInInvestingActivitiesContinuingOperationsAbstract_D4DE29CAF6689059B013F18EA18E85FA" xlink:to="loc_us-gaap_IncreaseDecreaseInIntangibleAssetsCurrent_65111BD1A25BEC1DB152F18EA18EB656" 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_E57E6DD0F2C789E0BCA0F18EA18E9833" 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_D4DE29CAF6689059B013F18EA18E85FA" xlink:to="loc_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_E57E6DD0F2C789E0BCA0F18EA18E9833" 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_D0747D6E40F674D33D37F18EA18F00B1" 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_D4DE29CAF6689059B013F18EA18E85FA" xlink:to="loc_us-gaap_ProceedsFromSaleOfPropertyPlantAndEquipment_D0747D6E40F674D33D37F18EA18F00B1" 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_083413BDDFC039C17D78F191EB4EF112" 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_NetCashProvidedByUsedInInvestingActivitiesContinuingOperationsAbstract_D4DE29CAF6689059B013F18EA18E85FA" xlink:to="loc_us-gaap_PaymentsToAcquireShortTermInvestments_083413BDDFC039C17D78F191EB4EF112" 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_E7D56EDED8B8E14A6254F18EA18FA086" 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_NetCashProvidedByUsedInInvestingActivitiesContinuingOperationsAbstract_D4DE29CAF6689059B013F18EA18E85FA" xlink:to="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_E7D56EDED8B8E14A6254F18EA18FA086" 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_853423DE524C780BCD0BF18EA18FF4BD" 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_482BE2EF144A123EEC31F18EA183A8B5" xlink:to="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperationsAbstract_853423DE524C780BCD0BF18EA18FF4BD" 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_CBB3AE0D07F18DD3326FF18EA18FFC51" 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_853423DE524C780BCD0BF18EA18FF4BD" xlink:to="loc_us-gaap_ProceedsFromStockOptionsExercised_CBB3AE0D07F18DD3326FF18EA18FFC51" 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_F3701A7C70BD5FAD923AF18EA190A86C" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperationsAbstract_853423DE524C780BCD0BF18EA18FF4BD" xlink:to="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_F3701A7C70BD5FAD923AF18EA190A86C" 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_FBF83CA844966FBBECF5F18EA191FFA2" 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_482BE2EF144A123EEC31F18EA183A8B5" xlink:to="loc_us-gaap_EffectOfExchangeRateOnCashAndCashEquivalents_FBF83CA844966FBBECF5F18EA191FFA2" 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_921EC2D3B85C624DFB21F18EA191F6F9" 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_482BE2EF144A123EEC31F18EA183A8B5" xlink:to="loc_us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease_921EC2D3B85C624DFB21F18EA191F6F9" 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_29DC9E3EAC544D150313F18EA1917732" 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_482BE2EF144A123EEC31F18EA183A8B5" xlink:to="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_29DC9E3EAC544D150313F18EA1917732" 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_458AA810B685EAF50EC2F18EA1919021" 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_482BE2EF144A123EEC31F18EA183A8B5" xlink:to="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_458AA810B685EAF50EC2F18EA1919021" 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_E3A17E9CADD60F6446A5F18EA191B1EA" 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_482BE2EF144A123EEC31F18EA183A8B5" xlink:to="loc_us-gaap_SupplementalCashFlowInformationAbstract_E3A17E9CADD60F6446A5F18EA191B1EA" 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_68AAA4076FAA5848CE61F18EA192B997" 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_SupplementalCashFlowInformationAbstract_E3A17E9CADD60F6446A5F18EA191B1EA" xlink:to="loc_us-gaap_IncomeTaxesPaidNet_68AAA4076FAA5848CE61F18EA192B997" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.liquidityservices.com/role/UnauditedConsolidatedStatementsOfComprehensiveLoss" 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_702B89B98EF43B20893CDCF241837415" 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_02E97C3DD08EFE0269B4DCF24183FC50" 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_StatementOfIncomeAndComprehensiveIncomeAbstract_702B89B98EF43B20893CDCF241837415" xlink:to="loc_us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic_02E97C3DD08EFE0269B4DCF24183FC50" 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_A672AF7D68BC2FD9EC69DCF24183F937" 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_702B89B98EF43B20893CDCF241837415" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecreaseAbstract_A672AF7D68BC2FD9EC69DCF24183F937" 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_24DB1C4565D0F74240CBDCF24184D859" 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_OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecreaseAbstract_A672AF7D68BC2FD9EC69DCF24183F937" xlink:to="loc_us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent_24DB1C4565D0F74240CBDCF24184D859" 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_5190D9F80318D8934DEBDCF241844CCA" xlink:type="locator" />
    <link:presentationArc order="2" 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_A672AF7D68BC2FD9EC69DCF24183F937" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent_5190D9F80318D8934DEBDCF241844CCA" 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_3AB76F6424594460920BDCF24184F9D5" 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_702B89B98EF43B20893CDCF241837415" xlink:to="loc_us-gaap_ComprehensiveIncomeNetOfTax_3AB76F6424594460920BDCF24184F9D5" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.liquidityservices.com/role/UnauditedConsolidatedStatementsOfOperations" 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_30060EEC7A8FB4B86DFAD6A2AE06047F" 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_CF70C5A85E06C493C6DAD6A2AE06CE0C" xlink:type="locator" />
    <link:presentationArc order="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_30060EEC7A8FB4B86DFAD6A2AE06047F" xlink:to="loc_us-gaap_SalesRevenueGoodsNet_CF70C5A85E06C493C6DAD6A2AE06CE0C" 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_CA3FFAA12F91DE12BCA9D6A2AE070E13" 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_30060EEC7A8FB4B86DFAD6A2AE06047F" xlink:to="loc_us-gaap_SalesRevenueServicesNet_CA3FFAA12F91DE12BCA9D6A2AE070E13" 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_7A0DD56B2D757AF1B5A3D6A2AE0743B9" 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_30060EEC7A8FB4B86DFAD6A2AE06047F" xlink:to="loc_us-gaap_SalesRevenueNet_7A0DD56B2D757AF1B5A3D6A2AE0743B9" 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_A80A9FFDF10F45A76193D6A2AE0775BA" 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_30060EEC7A8FB4B86DFAD6A2AE06047F" xlink:to="loc_us-gaap_CostsAndExpensesAbstract_A80A9FFDF10F45A76193D6A2AE0775BA" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CostOfGoodsSold" xlink:label="loc_us-gaap_CostOfGoodsSold_529BF7098675D72C8EE1D6A2AE072526" 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_CostsAndExpensesAbstract_A80A9FFDF10F45A76193D6A2AE0775BA" xlink:to="loc_us-gaap_CostOfGoodsSold_529BF7098675D72C8EE1D6A2AE072526" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180630.xsd#lqdt_ProfitSharingDistributions" xlink:label="loc_lqdt_ProfitSharingDistributions_E9FCE20CB06431CE5B61D6A2AE08CDDC" 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_A80A9FFDF10F45A76193D6A2AE0775BA" xlink:to="loc_lqdt_ProfitSharingDistributions_E9FCE20CB06431CE5B61D6A2AE08CDDC" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180630.xsd#lqdt_TechnologyAndOperationsExpense" xlink:label="loc_lqdt_TechnologyAndOperationsExpense_D0F9C58BEE52CC1D7364D6A2AE0893BE" 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_A80A9FFDF10F45A76193D6A2AE0775BA" xlink:to="loc_lqdt_TechnologyAndOperationsExpense_D0F9C58BEE52CC1D7364D6A2AE0893BE" xlink:type="arc" />
    <link:loc xlink:href="lqdt-20180630.xsd#lqdt_SalesAndMarketing" xlink:label="loc_lqdt_SalesAndMarketing_3A4247D92A07C80A3BB8D6A2AE083D6B" 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_A80A9FFDF10F45A76193D6A2AE0775BA" xlink:to="loc_lqdt_SalesAndMarketing_3A4247D92A07C80A3BB8D6A2AE083D6B" 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_BC4E671CC45FDB5D133DD6A2AE084C86" 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_A80A9FFDF10F45A76193D6A2AE0775BA" xlink:to="loc_us-gaap_GeneralAndAdministrativeExpense_BC4E671CC45FDB5D133DD6A2AE084C86" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DepreciationAndAmortization" xlink:label="loc_us-gaap_DepreciationAndAmortization_6539473F294D08FCA4C3D6A2AE087EF7" 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_CostsAndExpensesAbstract_A80A9FFDF10F45A76193D6A2AE0775BA" xlink:to="loc_us-gaap_DepreciationAndAmortization_6539473F294D08FCA4C3D6A2AE087EF7" 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_F01F1249A1490D253918D6A2AE096860" xlink:type="locator" />
    <link:presentationArc order="7" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CostsAndExpensesAbstract_A80A9FFDF10F45A76193D6A2AE0775BA" xlink:to="loc_us-gaap_OtherOperatingIncomeExpenseNet_F01F1249A1490D253918D6A2AE096860" 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_D482A568AF0C3CAEA22AD6A2AE09AB47" xlink:type="locator" />
    <link:presentationArc order="8" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CostsAndExpensesAbstract_A80A9FFDF10F45A76193D6A2AE0775BA" xlink:to="loc_us-gaap_CostsAndExpenses_D482A568AF0C3CAEA22AD6A2AE09AB47" 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_73066817A900515F5F34D6A2AE096E66" 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_30060EEC7A8FB4B86DFAD6A2AE06047F" xlink:to="loc_us-gaap_OperatingIncomeLoss_73066817A900515F5F34D6A2AE096E66" 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_8B1A858FCB80C9863CD0D6A2AE095342" 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_IncomeStatementAbstract_30060EEC7A8FB4B86DFAD6A2AE06047F" xlink:to="loc_us-gaap_InterestIncomeExpenseNet_8B1A858FCB80C9863CD0D6A2AE095342" 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_0AABE020CE49B6E86185D6A2AE09E138" 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_30060EEC7A8FB4B86DFAD6A2AE06047F" xlink:to="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments_0AABE020CE49B6E86185D6A2AE09E138" 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_5C731A9B83C6218DC7A5D6A2AE0ABBCF" 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_30060EEC7A8FB4B86DFAD6A2AE06047F" xlink:to="loc_us-gaap_IncomeTaxExpenseBenefit_5C731A9B83C6218DC7A5D6A2AE0ABBCF" 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_D0AEFB2D8EDE303154B5D6A2AE0AC188" 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_30060EEC7A8FB4B86DFAD6A2AE06047F" xlink:to="loc_us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic_D0AEFB2D8EDE303154B5D6A2AE0AC188" 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_E829164FAC68E1582F8BD6A2AE0A2B79" 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_30060EEC7A8FB4B86DFAD6A2AE06047F" xlink:to="loc_us-gaap_EarningsPerShareBasicAndDiluted_E829164FAC68E1582F8BD6A2AE0A2B79" 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_8257F5AA30E43F62E330D6A2AE0A0194" 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_30060EEC7A8FB4B86DFAD6A2AE06047F" xlink:to="loc_us-gaap_WeightedAverageNumberOfShareOutstandingBasicAndDiluted_8257F5AA30E43F62E330D6A2AE0A0194" xlink:type="arc" />
  </link:presentationLink>
</link:linkbase>