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<!-- DFIN ActiveDisclosure(SM) XBRL Schema Document - http://www.dfinsolutions.com/ -->
<!-- Creation Date      : 2022-03-04T17:07:56.0288058+00:00 -->
<!-- Version            : 5.0.1.728 -->
<!-- Package ID         : d6a5a1563ccf4a718cc415090284b8a2 -->
<!-- Copyright (c) 2022 Donnelley Financial Solutions, Inc. All Rights Reserved. -->
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  <xsd:element id="hckt_DisposalGroupIncludingDiscontinuedOperationCostsOfGoodsAndServicesSold" name="DisposalGroupIncludingDiscontinuedOperationCostsOfGoodsAndServicesSold" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit" />
  <xsd:element id="hckt_DisposalGroupIncludingDiscontinuedOperationSellingGeneralAndAdministrativeExpenseReversalOfExpense" name="DisposalGroupIncludingDiscontinuedOperationSellingGeneralAndAdministrativeExpenseReversalOfExpense" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit" />
  <xsd:element id="hckt_DisposalGroupIncludingDiscontinuedOperationCostsAndExpenses" name="DisposalGroupIncludingDiscontinuedOperationCostsAndExpenses" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit" />
  <xsd:element id="hckt_DisposalGroupIncludingDiscontinuedOperationRevenueAbstract" name="DisposalGroupIncludingDiscontinuedOperationRevenueAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="hckt_DisposalGroupIncludingDiscontinuedOperationCostsAndExpensesAbstract" name="DisposalGroupIncludingDiscontinuedOperationCostsAndExpensesAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="hckt_DisposalGroupIncludingDiscontinuedOperationCostOfServiceAbstract" name="DisposalGroupIncludingDiscontinuedOperationCostOfServiceAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="hckt_DilutiveRestrictedStockUnitsAndCommonStockSubjectToVestingRequirements" name="DilutiveRestrictedStockUnitsAndCommonStockSubjectToVestingRequirements" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xsd:element id="hckt_DilutiveStockOptionsAndStockAppreciationRights" name="DilutiveStockOptionsAndStockAppreciationRights" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xsd:element id="hckt_NumberOfCustomersAccountedForMoreThanFivePercentOfRevenue" name="NumberOfCustomersAccountedForMoreThanFivePercentOfRevenue" type="xbrli:integerItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xsd:element id="hckt_AccruedCompensationAndBenefits" name="AccruedCompensationAndBenefits" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit" />
  <xsd:element id="hckt_AccruedShareBasedCompensation" name="AccruedShareBasedCompensation" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit" />
  <xsd:element id="hckt_TaxDeductionRelatedToExerciseOfStockAppreciationRights" name="TaxDeductionRelatedToExerciseOfStockAppreciationRights" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit" />
  <xsd:element id="hckt_COVID19Member" name="COVID19Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="hckt_RealEstateLeasesMember" name="RealEstateLeasesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="hckt_ImpairmentRelatedCostsMember" name="ImpairmentRelatedCostsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="hckt_EuropeAndAustraliaMember" name="EuropeAndAustraliaMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="hckt_HackettInstituteEnterpriseAnalyticsProgramMember" name="HackettInstituteEnterpriseAnalyticsProgramMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="hckt_ExitClosureAndConsolidationOfFacilitiesMember" name="ExitClosureAndConsolidationOfFacilitiesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="hckt_LIBORFloorRateMember" name="LIBORFloorRateMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="hckt_PledgeOfCapitalStockToUSSubsidiaries" name="PledgeOfCapitalStockToUSSubsidiaries" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xsd:element id="hckt_PledgeOfCapitalStockToDirectForeignSubsidiaries" name="PledgeOfCapitalStockToDirectForeignSubsidiaries" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xsd:element id="hckt_RemainingDebtIssuanceCostToBeAmortized" name="RemainingDebtIssuanceCostToBeAmortized" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit" />
  <xsd:element id="hckt_EffectiveIncomeTaxRateReconciliationPurchaseAccounting" name="EffectiveIncomeTaxRateReconciliationPurchaseAccounting" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xsd:element id="hckt_EffectiveIncomeTaxRateReconciliationForeignExchangeGainLoss" name="EffectiveIncomeTaxRateReconciliationForeignExchangeGainLoss" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xsd:element id="hckt_DeferredTaxAssetsOperatingLossAndTaxCreditsCarryforwards" name="DeferredTaxAssetsOperatingLossAndTaxCreditsCarryforwards" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit" />
  <xsd:element id="hckt_CommonStockSubjectToVestingRequirementsMember" name="CommonStockSubjectToVestingRequirementsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="hckt_StockAppreciationRightsSarsAndStockOptionsMember" name="StockAppreciationRightsSarsAndStockOptionsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="hckt_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsExercisedInPeriod" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsExercisedInPeriod" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xsd:element id="hckt_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsExpiredInPeriod" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsExpiredInPeriod" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xsd:element id="hckt_ShareBasedCompensationArrangementByShareBasedPaymentAwardOtherThanOptionsExercisableNumber" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardOtherThanOptionsExercisableNumber" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xsd:element id="hckt_ShareBasedCompensationArrangementByShareBasedPaymentAwardOtherThanOptionsOutstandingWeightedAverageExercisePrice" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardOtherThanOptionsOutstandingWeightedAverageExercisePrice" type="dtr-types:perShareItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" />
  <xsd:element id="hckt_ShareBasedCompensationArrangementByShareBasedPaymentAwardOtherThanOptionsWeightedAverageExercisedPrice" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardOtherThanOptionsWeightedAverageExercisedPrice" type="dtr-types:perShareItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xsd:element id="hckt_ShareBasedCompensationArrangementByShareBasedPaymentAwardOtherThanOptionsExpiredInPeriodWeightedAverageExercisePrice" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardOtherThanOptionsExpiredInPeriodWeightedAverageExercisePrice" type="dtr-types:perShareItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xsd:element id="hckt_ShareBasedCompensationArrangementByShareBasedPaymentAwardOtherThanOptionsExercisableWeightedAverageExercisePrice" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardOtherThanOptionsExercisableWeightedAverageExercisePrice" type="dtr-types:perShareItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xsd:element id="hckt_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsExercisableWeightedAverageRemainingContractualTerms" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsExercisableWeightedAverageRemainingContractualTerms" type="xbrli:durationItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xsd:element id="hckt_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriodOptionOne" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriodOptionOne" type="xbrli:durationItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xsd:element id="hckt_ShareBasedCompensationArrangementByShareBasedPaymentAwardVestingPercentageUnderOptionOneDuringAnniversaryTwo" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardVestingPercentageUnderOptionOneDuringAnniversaryTwo" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xsd:element id="hckt_ShareBasedCompensationArrangementByShareBasedPaymentAwardVestingPercentageUnderOptionOneDuringAnniversaryThree" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardVestingPercentageUnderOptionOneDuringAnniversaryThree" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xsd:element id="hckt_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriodOptionTwo" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriodOptionTwo" type="xbrli:durationItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xsd:element id="hckt_ShareBasedCompensationArrangementByShareBasedPaymentAwardVestingPercentageUnderOptionTwoDuringAnniversaryOne" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardVestingPercentageUnderOptionTwoDuringAnniversaryOne" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xsd:element id="hckt_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriodOptionThree" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriodOptionThree" type="xbrli:durationItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xsd:element id="hckt_ShareBasedCompensationArrangementByShareBasedPaymentAwardVestingPercentageUnderOptionThreeDuringAnniversaryOne" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardVestingPercentageUnderOptionThreeDuringAnniversaryOne" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xsd:element id="hckt_ShareBasedCompensationArrangementByShareBasedPaymentAwardVestingPercentageUnderOptionOneDuringAnniversaryFour" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardVestingPercentageUnderOptionOneDuringAnniversaryFour" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xsd:element id="hckt_ShareBasedCompensationArrangementByShareBasedPaymentAwardVestingPercentageUnderOptionTwoDuringAnniversaryTwo" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardVestingPercentageUnderOptionTwoDuringAnniversaryTwo" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xsd:element id="hckt_ShareBasedCompensationArrangementByShareBasedPaymentAwardVestingPercentageUnderOptionThreeDuringAnniversaryTwo" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardVestingPercentageUnderOptionThreeDuringAnniversaryTwo" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xsd:element id="hckt_ShareBasedCompensationArrangementByShareBasedPaymentAwardVestingPercentageUnderOptionThreeDuringAnniversaryThree" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardVestingPercentageUnderOptionThreeDuringAnniversaryThree" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xsd:element id="hckt_ShareBasedCompensationArrangementByShareBasedPaymentAwardVestingPercentageUnderOptionTwoDuringAnniversaryThree" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardVestingPercentageUnderOptionTwoDuringAnniversaryThree" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xsd:element id="hckt_ShareBasedCompensationArrangementByShareBasedPaymentAwardVestingPercentageUnderOptionTwoDuringAnniversaryFour" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardVestingPercentageUnderOptionTwoDuringAnniversaryFour" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xsd:element id="hckt_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriodOptionFour" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriodOptionFour" type="xbrli:durationItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xsd:element id="hckt_ShareBasedCompensationArrangementByShareBasedPaymentAwardVestingPercentageUnderOptionFourDuringAnniversaryOne" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardVestingPercentageUnderOptionFourDuringAnniversaryOne" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xsd:element id="hckt_FutureCompensationExpenseRelatedToNonvestedCommonStockSubjectToVestingRequirements" name="FutureCompensationExpenseRelatedToNonvestedCommonStockSubjectToVestingRequirements" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit" />
  <xsd:element id="hckt_CompensationCostNotYetRecognizedOnNonvestedCommonStockSubjectToVestingRequirements" name="CompensationCostNotYetRecognizedOnNonvestedCommonStockSubjectToVestingRequirements" type="xbrli:durationItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xsd:element id="hckt_PercentageOfEligibleCompensationAllowedPerGrantPurchase" name="PercentageOfEligibleCompensationAllowedPerGrantPurchase" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xsd:element id="hckt_IntervalBetweenEmployeeStockPurchases" name="IntervalBetweenEmployeeStockPurchases" type="xbrli:durationItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xsd:element id="hckt_EmployeePurchasePriceAsPercentageOfTradingValue" name="EmployeePurchasePriceAsPercentageOfTradingValue" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xsd:element id="hckt_MaximumFairMarketValueOfEmployeeStockPurchase" name="MaximumFairMarketValueOfEmployeeStockPurchase" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit" />
  <xsd:element id="hckt_EmployeeStockPurchasePlanExpirationDate" name="EmployeeStockPurchasePlanExpirationDate" type="xbrli:dateItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xsd:element id="hckt_StockRepurchaseMember" name="StockRepurchaseMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="hckt_CumulativeMember" name="CumulativeMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xsd:element id="hckt_TaxWithholdingMember" name="TaxWithholdingMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xsd:element id="hckt_FirstQuarterMember" name="FirstQuarterMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="hckt_StockRepurchaseProgramAdditionalAuthorizedAmount" name="StockRepurchaseProgramAdditionalAuthorizedAmount" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit" />
  <xsd:element id="hckt_StockRepurchaseProgramCumulativePurchaseAmount" name="StockRepurchaseProgramCumulativePurchaseAmount" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit" />
  <xsd:element id="hckt_PercentageOfDividend" name="PercentageOfDividend" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xsd:element id="hckt_TreasuryStockValueOfSharesRetired" name="TreasuryStockValueOfSharesRetired" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit" />
  <xsd:element id="hckt_InternationalPrimarilyEuropeanCountriesMember" name="InternationalPrimarilyEuropeanCountriesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="hckt_GoodwillIncludedInForeignAsset" name="GoodwillIncludedInForeignAsset" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit" />
  <xsd:element id="hckt_SoftwareResaleTransaction" name="SoftwareResaleTransaction" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit" />
  <xsd:element id="hckt_StockIssuedDuringPeriodSharesForTaxBenefitForExerciseOfSARs" name="StockIssuedDuringPeriodSharesForTaxBenefitForExerciseOfSARs" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xsd:element id="hckt_ValuationAllowancesAndReservesWriteOffsRecoveries" name="ValuationAllowancesAndReservesWriteOffsRecoveries" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit" />
</xsd:schema>
