<?xml version="1.0" encoding="UTF-8"?>

<!--XBRL Document Created with the Workiva Platform-->
<!--Copyright 2026 Workiva-->
<!--r:019c8fb6-505d-7409-ae31-58c9c761de19,g:eef98dab-1f3d-4f8a-a1a3-6fa65f9981fe-->
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:iaci="http://www.iac.com/20260331" xmlns:xbrli="http://www.xbrl.org/2003/instance" xmlns:dtr-types="http://www.xbrl.org/dtr/type/2024-01-31" xmlns:xbrldt="http://xbrl.org/2005/xbrldt" attributeFormDefault="unqualified" elementFormDefault="qualified" targetNamespace="http://www.iac.com/20260331">
  <xs:import namespace="http://fasb.org/srt/2025" schemaLocation="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd"/>
  <xs:import namespace="http://fasb.org/us-gaap/2025" schemaLocation="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd"/>
  <xs:import namespace="http://www.xbrl.org/2003/instance" schemaLocation="http://www.xbrl.org/2003/xbrl-instance-2003-12-31.xsd"/>
  <xs:import namespace="http://www.xbrl.org/2003/linkbase" schemaLocation="http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd"/>
  <xs:import namespace="http://www.xbrl.org/dtr/type/2024-01-31" schemaLocation="https://www.xbrl.org/dtr/type/2024-01-31/types.xsd"/>
  <xs:import namespace="http://xbrl.org/2005/xbrldt" schemaLocation="http://www.xbrl.org/2005/xbrldt-2005.xsd"/>
  <xs:import namespace="http://xbrl.sec.gov/country/2025" schemaLocation="https://xbrl.sec.gov/country/2025/country-2025.xsd"/>
  <xs:import namespace="http://xbrl.sec.gov/dei/2025" schemaLocation="https://xbrl.sec.gov/dei/2025/dei-2025.xsd"/>
  <xs:import namespace="http://xbrl.sec.gov/ecd/2025" schemaLocation="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd"/>
  <xs:annotation>
    <xs:appinfo>
      <link:linkbaseRef xmlns:xlink="http://www.w3.org/1999/xlink" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:href="iaci-20260331_pre.xml" xlink:role="http://www.xbrl.org/2003/role/presentationLinkbaseRef" xlink:type="simple"/>
      <link:linkbaseRef xmlns:xlink="http://www.w3.org/1999/xlink" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:href="iaci-20260331_def.xml" xlink:role="http://www.xbrl.org/2003/role/definitionLinkbaseRef" xlink:type="simple"/>
      <link:linkbaseRef xmlns:xlink="http://www.w3.org/1999/xlink" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:href="iaci-20260331_lab.xml" xlink:role="http://www.xbrl.org/2003/role/labelLinkbaseRef" xlink:type="simple"/>
      <link:linkbaseRef xmlns:xlink="http://www.w3.org/1999/xlink" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:href="iaci-20260331_cal.xml" xlink:role="http://www.xbrl.org/2003/role/calculationLinkbaseRef" xlink:type="simple"/>
      <link:roleType id="COVER" roleURI="http://www.iac.com/role/COVER">
        <link:definition>0000001 - Document - COVER</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CONSOLIDATEDBALANCESHEET" roleURI="http://www.iac.com/role/CONSOLIDATEDBALANCESHEET">
        <link:definition>9952151 - Statement - CONSOLIDATED BALANCE SHEET</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CONSOLIDATEDBALANCESHEETParenthetical" roleURI="http://www.iac.com/role/CONSOLIDATEDBALANCESHEETParenthetical">
        <link:definition>9952152 - Statement - CONSOLIDATED BALANCE SHEET (Parenthetical)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CONSOLIDATEDSTATEMENTOFOPERATIONS" roleURI="http://www.iac.com/role/CONSOLIDATEDSTATEMENTOFOPERATIONS">
        <link:definition>9952153 - Statement - CONSOLIDATED STATEMENT OF OPERATIONS</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CONSOLIDATEDSTATEMENTOFCOMPREHENSIVEOPERATIONS" roleURI="http://www.iac.com/role/CONSOLIDATEDSTATEMENTOFCOMPREHENSIVEOPERATIONS">
        <link:definition>9952154 - Statement - CONSOLIDATED STATEMENT OF COMPREHENSIVE OPERATIONS</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CONSOLIDATEDSTATEMENTOFSHAREHOLDERSEQUITY" roleURI="http://www.iac.com/role/CONSOLIDATEDSTATEMENTOFSHAREHOLDERSEQUITY">
        <link:definition>9952155 - Statement - CONSOLIDATED STATEMENT OF SHAREHOLDERS' EQUITY</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CONSOLIDATEDSTATEMENTOFSHAREHOLDERSEQUITYParenthetical" roleURI="http://www.iac.com/role/CONSOLIDATEDSTATEMENTOFSHAREHOLDERSEQUITYParenthetical">
        <link:definition>9952156 - Statement - CONSOLIDATED STATEMENT OF SHAREHOLDERS' EQUITY (Parenthetical)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CONSOLIDATEDSTATEMENTOFCASHFLOWS" roleURI="http://www.iac.com/role/CONSOLIDATEDSTATEMENTOFCASHFLOWS">
        <link:definition>9952157 - Statement - CONSOLIDATED STATEMENT OF CASH FLOWS</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="THECOMPANYANDSUMMARYOFSIGNIFICANTACCOUNTINGPOLICIES" roleURI="http://www.iac.com/role/THECOMPANYANDSUMMARYOFSIGNIFICANTACCOUNTINGPOLICIES">
        <link:definition>9952158 - Disclosure - THE COMPANY AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="FINANCIALINSTRUMENTSANDFAIRVALUEMEASUREMENTS" roleURI="http://www.iac.com/role/FINANCIALINSTRUMENTSANDFAIRVALUEMEASUREMENTS">
        <link:definition>9952159 - Disclosure - FINANCIAL INSTRUMENTS AND FAIR VALUE MEASUREMENTS</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="LONGTERMDEBT" roleURI="http://www.iac.com/role/LONGTERMDEBT">
        <link:definition>9952160 - Disclosure - LONG-TERM DEBT</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ACCUMULATEDOTHERCOMPREHENSIVELOSS" roleURI="http://www.iac.com/role/ACCUMULATEDOTHERCOMPREHENSIVELOSS">
        <link:definition>9952161 - Disclosure - ACCUMULATED OTHER COMPREHENSIVE LOSS</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SEGMENTINFORMATION" roleURI="http://www.iac.com/role/SEGMENTINFORMATION">
        <link:definition>9952162 - Disclosure - SEGMENT INFORMATION</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="PENSIONANDPOSTRETIREMENTBENEFITPLANS" roleURI="http://www.iac.com/role/PENSIONANDPOSTRETIREMENTBENEFITPLANS">
        <link:definition>9952163 - Disclosure - PENSION AND POST-RETIREMENT BENEFIT PLANS</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="INCOMETAXES" roleURI="http://www.iac.com/role/INCOMETAXES">
        <link:definition>9952164 - Disclosure - INCOME TAXES</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="LOSSPERSHARE" roleURI="http://www.iac.com/role/LOSSPERSHARE">
        <link:definition>9952165 - Disclosure - LOSS PER SHARE</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="FINANCIALSTATEMENTDETAILS" roleURI="http://www.iac.com/role/FINANCIALSTATEMENTDETAILS">
        <link:definition>9952166 - Disclosure - FINANCIAL STATEMENT DETAILS</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CONTINGENCIES" roleURI="http://www.iac.com/role/CONTINGENCIES">
        <link:definition>9952167 - Disclosure - CONTINGENCIES</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RELATEDPARTYTRANSACTIONS" roleURI="http://www.iac.com/role/RELATEDPARTYTRANSACTIONS">
        <link:definition>9952168 - Disclosure - RELATED PARTY TRANSACTIONS</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="DISCONTINUEDOPERATIONS" roleURI="http://www.iac.com/role/DISCONTINUEDOPERATIONS">
        <link:definition>9952169 - Disclosure - DISCONTINUED OPERATIONS</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="PEOPLEINCFINANCIALINFORMATION" roleURI="http://www.iac.com/role/PEOPLEINCFINANCIALINFORMATION">
        <link:definition>9952170 - Disclosure - PEOPLE INC. FINANCIAL INFORMATION</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="THECOMPANYANDSUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESPolicies" roleURI="http://www.iac.com/role/THECOMPANYANDSUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESPolicies">
        <link:definition>9955511 - Disclosure - THE COMPANY AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="THECOMPANYANDSUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESTables" roleURI="http://www.iac.com/role/THECOMPANYANDSUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESTables">
        <link:definition>9955512 - Disclosure - THE COMPANY AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="FINANCIALINSTRUMENTSANDFAIRVALUEMEASUREMENTSTables" roleURI="http://www.iac.com/role/FINANCIALINSTRUMENTSANDFAIRVALUEMEASUREMENTSTables">
        <link:definition>9955513 - Disclosure - FINANCIAL INSTRUMENTS AND FAIR VALUE MEASUREMENTS (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="LONGTERMDEBTTables" roleURI="http://www.iac.com/role/LONGTERMDEBTTables">
        <link:definition>9955514 - Disclosure - LONG-TERM DEBT (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ACCUMULATEDOTHERCOMPREHENSIVELOSSTables" roleURI="http://www.iac.com/role/ACCUMULATEDOTHERCOMPREHENSIVELOSSTables">
        <link:definition>9955515 - Disclosure - ACCUMULATED OTHER COMPREHENSIVE LOSS (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SEGMENTINFORMATIONTables" roleURI="http://www.iac.com/role/SEGMENTINFORMATIONTables">
        <link:definition>9955516 - Disclosure - SEGMENT INFORMATION (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="PENSIONANDPOSTRETIREMENTBENEFITPLANSTables" roleURI="http://www.iac.com/role/PENSIONANDPOSTRETIREMENTBENEFITPLANSTables">
        <link:definition>9955517 - Disclosure - PENSION AND POST-RETIREMENT BENEFIT PLANS (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="LOSSPERSHARETables" roleURI="http://www.iac.com/role/LOSSPERSHARETables">
        <link:definition>9955518 - Disclosure - LOSS PER SHARE (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="FINANCIALSTATEMENTDETAILSTables" roleURI="http://www.iac.com/role/FINANCIALSTATEMENTDETAILSTables">
        <link:definition>9955519 - Disclosure - FINANCIAL STATEMENT DETAILS (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="DISCONTINUEDOPERATIONSTables" roleURI="http://www.iac.com/role/DISCONTINUEDOPERATIONSTables">
        <link:definition>9955520 - Disclosure - DISCONTINUED OPERATIONS (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="PEOPLEINCFINANCIALINFORMATIONTables" roleURI="http://www.iac.com/role/PEOPLEINCFINANCIALINFORMATIONTables">
        <link:definition>9955521 - Disclosure - PEOPLE INC. FINANCIAL INFORMATION (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="THECOMPANYANDSUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESNarrativeDetails" roleURI="http://www.iac.com/role/THECOMPANYANDSUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESNarrativeDetails">
        <link:definition>9955522 - Disclosure - THE COMPANY AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Narrative (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="THECOMPANYANDSUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESScheduleofChangesinDeferredRevenueDetails" roleURI="http://www.iac.com/role/THECOMPANYANDSUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESScheduleofChangesinDeferredRevenueDetails">
        <link:definition>9955523 - Disclosure - THE COMPANY AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Schedule of Changes in Deferred Revenue (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="THECOMPANYANDSUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESCertainRisksandConcentrationsDetails" roleURI="http://www.iac.com/role/THECOMPANYANDSUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESCertainRisksandConcentrationsDetails">
        <link:definition>9955524 - Disclosure - THE COMPANY AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Certain Risks and Concentrations (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="FINANCIALINSTRUMENTSANDFAIRVALUEMEASUREMENTSInvestmentinMGMDetails" roleURI="http://www.iac.com/role/FINANCIALINSTRUMENTSANDFAIRVALUEMEASUREMENTSInvestmentinMGMDetails">
        <link:definition>9955525 - Disclosure - FINANCIAL INSTRUMENTS AND FAIR VALUE MEASUREMENTS - Investment in MGM (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="FINANCIALINSTRUMENTSANDFAIRVALUEMEASUREMENTSNarrativeDetails" roleURI="http://www.iac.com/role/FINANCIALINSTRUMENTSANDFAIRVALUEMEASUREMENTSNarrativeDetails">
        <link:definition>9955526 - Disclosure - FINANCIAL INSTRUMENTS AND FAIR VALUE MEASUREMENTS - Narrative (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="FINANCIALINSTRUMENTSANDFAIRVALUEMEASUREMENTSInvestmentIncomeStatementInformationDetails" roleURI="http://www.iac.com/role/FINANCIALINSTRUMENTSANDFAIRVALUEMEASUREMENTSInvestmentIncomeStatementInformationDetails">
        <link:definition>9955527 - Disclosure - FINANCIAL INSTRUMENTS AND FAIR VALUE MEASUREMENTS - Investment Income Statement Information (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="FINANCIALINSTRUMENTSANDFAIRVALUEMEASUREMENTSLongtermInvestmentsDetails" roleURI="http://www.iac.com/role/FINANCIALINSTRUMENTSANDFAIRVALUEMEASUREMENTSLongtermInvestmentsDetails">
        <link:definition>9955528 - Disclosure - FINANCIAL INSTRUMENTS AND FAIR VALUE MEASUREMENTS - Long-term Investments (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="FINANCIALINSTRUMENTSANDFAIRVALUEMEASUREMENTSRealizedandUnrealizedGainsandLossesDetails" roleURI="http://www.iac.com/role/FINANCIALINSTRUMENTSANDFAIRVALUEMEASUREMENTSRealizedandUnrealizedGainsandLossesDetails">
        <link:definition>9955529 - Disclosure - FINANCIAL INSTRUMENTS AND FAIR VALUE MEASUREMENTS - Realized and Unrealized Gains and Losses (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="FINANCIALINSTRUMENTSANDFAIRVALUEMEASUREMENTSAssetsandLiabilitiesMeasuredatFairValueonaRecurringBasisDetails" roleURI="http://www.iac.com/role/FINANCIALINSTRUMENTSANDFAIRVALUEMEASUREMENTSAssetsandLiabilitiesMeasuredatFairValueonaRecurringBasisDetails">
        <link:definition>9955530 - Disclosure - FINANCIAL INSTRUMENTS AND FAIR VALUE MEASUREMENTS - Assets and Liabilities Measured at Fair Value on a Recurring Basis (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="LONGTERMDEBTScheduleofLongtermDebtDetails" roleURI="http://www.iac.com/role/LONGTERMDEBTScheduleofLongtermDebtDetails">
        <link:definition>9955531 - Disclosure - LONG-TERM DEBT - Schedule of Long-term Debt (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="LONGTERMDEBTNarrativeDetails" roleURI="http://www.iac.com/role/LONGTERMDEBTNarrativeDetails">
        <link:definition>9955532 - Disclosure - LONG-TERM DEBT - Narrative (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ACCUMULATEDOTHERCOMPREHENSIVELOSSDetails" roleURI="http://www.iac.com/role/ACCUMULATEDOTHERCOMPREHENSIVELOSSDetails">
        <link:definition>9955533 - Disclosure - ACCUMULATED OTHER COMPREHENSIVE LOSS (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SEGMENTINFORMATIONRevenuebyReportableSegmentDetails" roleURI="http://www.iac.com/role/SEGMENTINFORMATIONRevenuebyReportableSegmentDetails">
        <link:definition>9955534 - Disclosure - SEGMENT INFORMATION - Revenue by Reportable Segment (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SEGMENTINFORMATIONRevenueDisaggregatedbyServiceDetails" roleURI="http://www.iac.com/role/SEGMENTINFORMATIONRevenueDisaggregatedbyServiceDetails">
        <link:definition>9955535 - Disclosure - SEGMENT INFORMATION - Revenue Disaggregated by Service (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SEGMENTINFORMATIONRevenueDisaggregatedbySessionandNonSessionBasedRevenueDetails" roleURI="http://www.iac.com/role/SEGMENTINFORMATIONRevenueDisaggregatedbySessionandNonSessionBasedRevenueDetails">
        <link:definition>9955536 - Disclosure - SEGMENT INFORMATION - Revenue Disaggregated by Session and Non-Session-Based Revenue (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SEGMENTINFORMATIONSegmentExpensesDetails" roleURI="http://www.iac.com/role/SEGMENTINFORMATIONSegmentExpensesDetails">
        <link:definition>9955537 - Disclosure - SEGMENT INFORMATION - Segment Expenses (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SEGMENTINFORMATIONAdjustedEBITDADetails" roleURI="http://www.iac.com/role/SEGMENTINFORMATIONAdjustedEBITDADetails">
        <link:definition>9955538 - Disclosure - SEGMENT INFORMATION - Adjusted EBITDA (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SEGMENTINFORMATIONReconciliationofAdjustedEBITDAtoOperatingIncomeDetails" roleURI="http://www.iac.com/role/SEGMENTINFORMATIONReconciliationofAdjustedEBITDAtoOperatingIncomeDetails">
        <link:definition>9955539 - Disclosure - SEGMENT INFORMATION - Reconciliation of Adjusted EBITDA to Operating Income (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SEGMENTINFORMATIONCapitalExpendituresbySegmentDetails" roleURI="http://www.iac.com/role/SEGMENTINFORMATIONCapitalExpendituresbySegmentDetails">
        <link:definition>9955540 - Disclosure - SEGMENT INFORMATION - Capital Expenditures by Segment (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="PENSIONANDPOSTRETIREMENTBENEFITPLANSComponentsofNetPeriodicBenefitCostsDetails" roleURI="http://www.iac.com/role/PENSIONANDPOSTRETIREMENTBENEFITPLANSComponentsofNetPeriodicBenefitCostsDetails">
        <link:definition>9955541 - Disclosure - PENSION AND POST-RETIREMENT BENEFIT PLANS - Components of Net Periodic Benefit Costs (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="INCOMETAXESDetails" roleURI="http://www.iac.com/role/INCOMETAXESDetails">
        <link:definition>9955542 - Disclosure - INCOME TAXES (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="LOSSPERSHAREDetails" roleURI="http://www.iac.com/role/LOSSPERSHAREDetails">
        <link:definition>9955543 - Disclosure - LOSS PER SHARE (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="FINANCIALSTATEMENTDETAILSCashCashEquivalentsandRestrictedCashDetails" roleURI="http://www.iac.com/role/FINANCIALSTATEMENTDETAILSCashCashEquivalentsandRestrictedCashDetails">
        <link:definition>9955544 - Disclosure - FINANCIAL STATEMENT DETAILS - Cash, Cash Equivalents, and Restricted Cash (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="FINANCIALSTATEMENTDETAILSCashandCashEquivalentsbyGeographicLocationDetails" roleURI="http://www.iac.com/role/FINANCIALSTATEMENTDETAILSCashandCashEquivalentsbyGeographicLocationDetails">
        <link:definition>9955545 - Disclosure - FINANCIAL STATEMENT DETAILS - Cash and Cash Equivalents by Geographic Location (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="FINANCIALSTATEMENTDETAILSAllowanceforCreditLossDetails" roleURI="http://www.iac.com/role/FINANCIALSTATEMENTDETAILSAllowanceforCreditLossDetails">
        <link:definition>9955546 - Disclosure - FINANCIAL STATEMENT DETAILS - Allowance for Credit Loss (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="FINANCIALSTATEMENTDETAILSAccumulatedDepreciationandAmortizationDetails" roleURI="http://www.iac.com/role/FINANCIALSTATEMENTDETAILSAccumulatedDepreciationandAmortizationDetails">
        <link:definition>9955547 - Disclosure - FINANCIAL STATEMENT DETAILS - Accumulated Depreciation and Amortization (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="FINANCIALSTATEMENTDETAILSOtherExpenseIncomeNetDetails" roleURI="http://www.iac.com/role/FINANCIALSTATEMENTDETAILSOtherExpenseIncomeNetDetails">
        <link:definition>9955548 - Disclosure - FINANCIAL STATEMENT DETAILS - Other (Expense) Income, Net (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CONTINGENCIESDetails" roleURI="http://www.iac.com/role/CONTINGENCIESDetails">
        <link:definition>9955549 - Disclosure - CONTINGENCIES (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RELATEDPARTYTRANSACTIONSDetails" roleURI="http://www.iac.com/role/RELATEDPARTYTRANSACTIONSDetails">
        <link:definition>9955550 - Disclosure - RELATED PARTY TRANSACTIONS (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="DISCONTINUEDOPERATIONSAssetsandLiabilitiesofDiscontinuedOperationsDetails" roleURI="http://www.iac.com/role/DISCONTINUEDOPERATIONSAssetsandLiabilitiesofDiscontinuedOperationsDetails">
        <link:definition>9955551 - Disclosure - DISCONTINUED OPERATIONS - Assets and Liabilities of Discontinued Operations (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="DISCONTINUEDOPERATIONSComponentsofEarningsLossfromDiscontinuedOperationsDetails" roleURI="http://www.iac.com/role/DISCONTINUEDOPERATIONSComponentsofEarningsLossfromDiscontinuedOperationsDetails">
        <link:definition>9955552 - Disclosure - DISCONTINUED OPERATIONS - Components of Earnings (Loss) from Discontinued Operations (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="PEOPLEINCFINANCIALINFORMATIONConsolidatedBalanceSheetDetails" roleURI="http://www.iac.com/role/PEOPLEINCFINANCIALINFORMATIONConsolidatedBalanceSheetDetails">
        <link:definition>9955553 - Disclosure - PEOPLE INC. FINANCIAL INFORMATION - Consolidated Balance Sheet (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="PEOPLEINCFINANCIALINFORMATIONConsolidatedStatementofOperationsandComprehensiveOperationsDetails" roleURI="http://www.iac.com/role/PEOPLEINCFINANCIALINFORMATIONConsolidatedStatementofOperationsandComprehensiveOperationsDetails">
        <link:definition>9955554 - Disclosure - PEOPLE INC. FINANCIAL INFORMATION - Consolidated Statement of Operations and Comprehensive Operations (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="PEOPLEINCFINANCIALINFORMATIONConsolidatedStatementsofCashFlowsDetails" roleURI="http://www.iac.com/role/PEOPLEINCFINANCIALINFORMATIONConsolidatedStatementsofCashFlowsDetails">
        <link:definition>9955555 - Disclosure - PEOPLE INC. FINANCIAL INFORMATION - Consolidated Statements of Cash Flows (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="PEOPLEINCFINANCIALINFORMATIONStatementsofConsolidatedShareholdersEquityDetails" roleURI="http://www.iac.com/role/PEOPLEINCFINANCIALINFORMATIONStatementsofConsolidatedShareholdersEquityDetails">
        <link:definition>9955556 - Disclosure - PEOPLE INC. FINANCIAL INFORMATION - Statements of Consolidated Shareholder's Equity (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
    </xs:appinfo>
  </xs:annotation>
  <xs:element id="iaci_EquitySecuritiesWithoutReadilyDeterminableFairValueAndOtherLongTermInvestments" abstract="false" name="EquitySecuritiesWithoutReadilyDeterminableFairValueAndOtherLongTermInvestments" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="iaci_IntercompanyLiabilityNoncurrent" abstract="false" name="IntercompanyLiabilityNoncurrent" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="iaci_EarningsPerShareBasicAndDilutedContinuingOperationsAbstract" abstract="true" name="EarningsPerShareBasicAndDilutedContinuingOperationsAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="iaci_NonCashCompensationExpenseByFunctionAbstract" abstract="true" name="NonCashCompensationExpenseByFunctionAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="iaci_RedeemableNoncontrollingInterestsMember" abstract="true" name="RedeemableNoncontrollingInterestsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="iaci_IssuanceOfCommonStockSharesPursuantToStockBasedAwardsNetOfWithholdingTaxes" abstract="false" name="IssuanceOfCommonStockSharesPursuantToStockBasedAwardsNetOfWithholdingTaxes" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="iaci_IssuanceofCommonStockPursuanttoStockBasedAwardsNetofWithholdingTaxes" abstract="false" name="IssuanceofCommonStockPursuanttoStockBasedAwardsNetofWithholdingTaxes" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="iaci_AdjustmentsToAdditionalPaidInCapitalPaymentReceivedFromTaxSharingAgreement" abstract="false" name="AdjustmentsToAdditionalPaidInCapitalPaymentReceivedFromTaxSharingAgreement" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="iaci_AdjustmentsToAdditionalPaidInCapitalInvestmentDistributionTaxAllocation" abstract="false" name="AdjustmentsToAdditionalPaidInCapitalInvestmentDistributionTaxAllocation" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="iaci_AdjustmentsToAdditionalPaidInCapitalInvestmentDistributionAdjustmentRepealOfCanadaDigitalServiceTax" abstract="false" name="AdjustmentsToAdditionalPaidInCapitalInvestmentDistributionAdjustmentRepealOfCanadaDigitalServiceTax" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="iaci_AdjustmentofRedeemableNoncontrollingInteresttoFairValue" abstract="false" name="AdjustmentofRedeemableNoncontrollingInteresttoFairValue" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="iaci_AdjustmentsToAdditionalPaidInCapitalAdjustmentToLiquidationValue" abstract="false" name="AdjustmentsToAdditionalPaidInCapitalAdjustmentToLiquidationValue" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="iaci_AdjustmentsToAdditionalPaidInCapitalInvestmentDistribution" abstract="false" name="AdjustmentsToAdditionalPaidInCapitalInvestmentDistribution" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="iaci_OperatingLeaseNonCashLeaseExpense" abstract="false" name="OperatingLeaseNonCashLeaseExpense" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="iaci_LongTermEquitySecuritiesAndDivestitureOfBusinessFVNIGainLoss" abstract="false" name="LongTermEquitySecuritiesAndDivestitureOfBusinessFVNIGainLoss" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="iaci_ProceedsfromDivestitureofBusinessandSaleofLongtermInvestments" abstract="false" name="ProceedsfromDivestitureofBusinessandSaleofLongtermInvestments" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="iaci_ProceedsFromSaleOfRetirementInvestmentFund" abstract="false" name="ProceedsFromSaleOfRetirementInvestmentFund" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="iaci_PaymentForReimbursementOfSharesIssuedToSettleStockAppreciateRights" abstract="false" name="PaymentForReimbursementOfSharesIssuedToSettleStockAppreciateRights" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="iaci_PaymentOfIntercompanyTransactionsToParent" abstract="false" name="PaymentOfIntercompanyTransactionsToParent" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="iaci_LongTermInvestmentsTableTextBlock" abstract="false" name="LongTermInvestmentsTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="iaci_ScheduleOfAdjustedEarningBeforeInterestTaxesDepreciationAndAmortizationTableTextBlock" abstract="false" name="ScheduleOfAdjustedEarningBeforeInterestTaxesDepreciationAndAmortizationTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="iaci_ScheduleOfReconciliationOfAdjustedEBITDAToOperatingIncomeTableTextBlock" abstract="false" name="ScheduleOfReconciliationOfAdjustedEBITDAToOperatingIncomeTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="iaci_ScheduleOfCapitalExpendituresBySegmentTableTextBlock" abstract="false" name="ScheduleOfCapitalExpendituresBySegmentTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="iaci_ScheduleofAccumulatedDepreciationandAmortizationTableTextBlock" abstract="false" name="ScheduleofAccumulatedDepreciationandAmortizationTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="iaci_StockBasedCompensationExpenseMember" abstract="true" name="StockBasedCompensationExpenseMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="iaci_StockBasedCompensationExpenseRelatedToAccelerationOfEmployeeAwardAgreementsMember" abstract="true" name="StockBasedCompensationExpenseRelatedToAccelerationOfEmployeeAwardAgreementsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="iaci_StockBasedCompensationExpenseRelatedToModificationOfAwardsMember" abstract="true" name="StockBasedCompensationExpenseRelatedToModificationOfAwardsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="iaci_Care.comMember" abstract="true" name="Care.comMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="iaci_IACCorporateRestructuringMember" abstract="true" name="IACCorporateRestructuringMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="iaci_ContractWithCustomerLiabilityRollForward" abstract="true" name="ContractWithCustomerLiabilityRollForward" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="iaci_GoogleIncMember" abstract="true" name="GoogleIncMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="iaci_GoogleServicesAgreementMember" abstract="true" name="GoogleServicesAgreementMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="iaci_SearchMember" abstract="true" name="SearchMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="iaci_MGMMember" abstract="true" name="MGMMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="iaci_EquityMethodInvestmentNumberOfSharesPurchased" abstract="false" name="EquityMethodInvestmentNumberOfSharesPurchased" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="iaci_EquitySecuritiesFVNICumulativeGainLoss" abstract="false" name="EquitySecuritiesFVNICumulativeGainLoss" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="iaci_SensitivityAnalysisOfEquitySecuritiesFVNIUnrealizedGainLossImpactOfTwoDollarChangeInSharePrice" abstract="false" name="SensitivityAnalysisOfEquitySecuritiesFVNIUnrealizedGainLossImpactOfTwoDollarChangeInSharePrice" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="iaci_VotingAgreementThresholdOwnershipPercentage" abstract="false" name="VotingAgreementThresholdOwnershipPercentage" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="iaci_VotingAgreementTerminationThresholdOwnershipPercentage" abstract="false" name="VotingAgreementTerminationThresholdOwnershipPercentage" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="iaci_VotingAgreementThresholdNumberOfDesignatedDirectors" abstract="false" name="VotingAgreementThresholdNumberOfDesignatedDirectors" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="iaci_VotingAgreementDirectorReplacementPeriod" abstract="false" name="VotingAgreementDirectorReplacementPeriod" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="iaci_EquitySecuritieswithoutReadilyDeterminableFairValueAnnualAmount" abstract="false" name="EquitySecuritieswithoutReadilyDeterminableFairValueAnnualAmount" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="iaci_EquitySecuritiesWithoutReadilyDeterminableFairValueRealizedGainsLossesAbstract" abstract="true" name="EquitySecuritiesWithoutReadilyDeterminableFairValueRealizedGainsLossesAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="iaci_EquitySecuritiesWithoutReadilyDeterminableFairValueRealizedGainLoss" abstract="false" name="EquitySecuritiesWithoutReadilyDeterminableFairValueRealizedGainLoss" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="iaci_EquitySecuritiesWithoutReadilyDeterminableFairValueUnrealizedGainLoss" abstract="false" name="EquitySecuritiesWithoutReadilyDeterminableFairValueUnrealizedGainLoss" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="iaci_EquitySecuritiesWithoutReadilyDeterminableFairValueGainLoss" abstract="false" name="EquitySecuritiesWithoutReadilyDeterminableFairValueGainLoss" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="iaci_TermLoanA1FacilityMember" abstract="true" name="TermLoanA1FacilityMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="iaci_TermLoanB2FacilityMember" abstract="true" name="TermLoanB2FacilityMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="iaci_A2032NotesMember" abstract="true" name="A2032NotesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="iaci_RevolvingFacilityMember" abstract="true" name="RevolvingFacilityMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="iaci_ExistingRevolvingFacilityMember" abstract="true" name="ExistingRevolvingFacilityMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="iaci_VariableRateComponentAxis" abstract="true" name="VariableRateComponentAxis" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType"/>
  <xs:element id="iaci_VariableRateComponentDomain" abstract="true" name="VariableRateComponentDomain" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="iaci_VariableRateComponentOneMember" abstract="true" name="VariableRateComponentOneMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="iaci_VariableRateComponentTwoMember" abstract="true" name="VariableRateComponentTwoMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="iaci_NumberOfReportableSegmentsNotDisclosedFlag" abstract="false" name="NumberOfReportableSegmentsNotDisclosedFlag" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="iaci_PeopleInc.Member" abstract="true" name="PeopleInc.Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="iaci_DigitalMember" abstract="true" name="DigitalMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="iaci_PrintMember" abstract="true" name="PrintMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="iaci_EmergingOtherMember" abstract="true" name="EmergingOtherMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="iaci_DisplayAdvertisingMember" abstract="true" name="DisplayAdvertisingMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="iaci_PerformanceMarketingMember" abstract="true" name="PerformanceMarketingMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="iaci_LicensingAndOtherMember" abstract="true" name="LicensingAndOtherMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="iaci_SubscriptionMember" abstract="true" name="SubscriptionMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="iaci_AdvertisingGoogleMember" abstract="true" name="AdvertisingGoogleMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="iaci_AdvertisingOtherMember" abstract="true" name="AdvertisingOtherMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="iaci_NewsstandMember" abstract="true" name="NewsstandMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="iaci_ProjectAndOtherPrintMember" abstract="true" name="ProjectAndOtherPrintMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="iaci_SessionBasedServicesMember" abstract="true" name="SessionBasedServicesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="iaci_NonSessionBasedServicesMember" abstract="true" name="NonSessionBasedServicesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="iaci_TrafficAcquisitionCostsAndOnlineMarketingExpense" abstract="false" name="TrafficAcquisitionCostsAndOnlineMarketingExpense" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="iaci_AdjustedEBITDAGeneratedInFourthQuarterEachYearPercent" abstract="false" name="AdjustedEBITDAGeneratedInFourthQuarterEachYearPercent" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="iaci_AdjustedEBITDA" abstract="false" name="AdjustedEBITDA" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="iaci_EmploymentTransitionAgreementMember" abstract="true" name="EmploymentTransitionAgreementMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="iaci_UnrecognizedTaxBenefitsUnrelatedToFederalIncomeTaxesStatuteOfLimitationsExpiringToBeRecognizedInSubsequentPeriodsThatWouldIncomeImpactTaxExpenseContinuingOperations" abstract="false" name="UnrecognizedTaxBenefitsUnrelatedToFederalIncomeTaxesStatuteOfLimitationsExpiringToBeRecognizedInSubsequentPeriodsThatWouldIncomeImpactTaxExpenseContinuingOperations" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="iaci_DisposalGroupIncludingDiscontinuedOperationRestrictedCash" abstract="false" name="DisposalGroupIncludingDiscontinuedOperationRestrictedCash" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="iaci_SubsidiariesExcludingPeopleInc.Member" abstract="true" name="SubsidiariesExcludingPeopleInc.Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="iaci_GainLossOnDispositionOfBusinessInvestmentsAndUpwardDownwardAdjustmentOnEquitySecuritiesWithoutReadilyDeterminableFairValue" abstract="false" name="GainLossOnDispositionOfBusinessInvestmentsAndUpwardDownwardAdjustmentOnEquitySecuritiesWithoutReadilyDeterminableFairValue" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="iaci_PeopleInc.AdTechAntitrustLitigationAgainstGoogleMember" abstract="true" name="PeopleInc.AdTechAntitrustLitigationAgainstGoogleMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="iaci_GainContingencyAllegationNumberOfTypesOfAnticompetitiveConducts" abstract="false" name="GainContingencyAllegationNumberOfTypesOfAnticompetitiveConducts" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="iaci_LossContingencyPriorGainDisputed" abstract="false" name="LossContingencyPriorGainDisputed" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="iaci_LossContingencyProceedsHeldInEscrow" abstract="false" name="LossContingencyProceedsHeldInEscrow" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="iaci_LossContingencyProceedsHeldInEscrowAmountAllocableToOtherParty" abstract="false" name="LossContingencyProceedsHeldInEscrowAmountAllocableToOtherParty" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="iaci_CorporateAircraftPurchaseMember" abstract="true" name="CorporateAircraftPurchaseMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="iaci_PercentageofOwnershipInterestHeldEachbyEntityandbyRelatedPartyinAircraftEmployingFlightCrew" abstract="false" name="PercentageofOwnershipInterestHeldEachbyEntityandbyRelatedPartyinAircraftEmployingFlightCrew" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="iaci_PercentageOfOwnershipInterestHeldEachByEntityAndByRelatedPartyInAnotherEntityEmployingFlightCrew" abstract="false" name="PercentageOfOwnershipInterestHeldEachByEntityAndByRelatedPartyInAnotherEntityEmployingFlightCrew" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="iaci_RelatedPartyTransactionFixedCostAllocationPercentage" abstract="false" name="RelatedPartyTransactionFixedCostAllocationPercentage" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="iaci_PercentageOfOwnershipInterestInAircraftBySubsidiary" abstract="false" name="PercentageOfOwnershipInterestInAircraftBySubsidiary" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="iaci_RelatedPartyTransactionSharedSecurityCostPercentage" abstract="false" name="RelatedPartyTransactionSharedSecurityCostPercentage" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="iaci_AngiMember" abstract="true" name="AngiMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="iaci_RSAAgreementMember" abstract="true" name="RSAAgreementMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="iaci_OperatingCostsAndExpensesDiscontinuedOperationsAbstract" abstract="true" name="OperatingCostsAndExpensesDiscontinuedOperationsAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="iaci_DisposalGroupIncludingDiscontinuedOperationSellingAndMarketingExpense" abstract="false" name="DisposalGroupIncludingDiscontinuedOperationSellingAndMarketingExpense" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="iaci_DisposalGroupIncludingDiscontinuedOperationResearchAndDevelopmentExpense" abstract="false" name="DisposalGroupIncludingDiscontinuedOperationResearchAndDevelopmentExpense" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="iaci_DisposalGroupIncludingDiscontinuedOperationDepreciation" abstract="false" name="DisposalGroupIncludingDiscontinuedOperationDepreciation" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="iaci_DisposalGroupIncludingDiscontinuedOperationAmortization" abstract="false" name="DisposalGroupIncludingDiscontinuedOperationAmortization" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="iaci_DisposalGroupIncludingDiscontinuedOperationOtherIncomeExpense" abstract="false" name="DisposalGroupIncludingDiscontinuedOperationOtherIncomeExpense" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
</xs:schema>
