<?xml version="1.0" encoding="UTF-8"?><edgarSubmission xmlns="http://www.sec.gov/edgar/ownership" xmlns:com="http://www.sec.gov/edgar/common">
  <headerData>
    <submissionType>144</submissionType>
    <filerInfo>
      <filer>
        <filerCredentials>
          <cik>0001749338</cik>
          <ccc>XXXXXXXX</ccc>
        </filerCredentials>
      </filer>
      <liveTestFlag>LIVE</liveTestFlag>


    </filerInfo>
  </headerData>
  <formData>
    <issuerInfo>
      <issuerCik>0001576427</issuerCik>
      <issuerName>Criteo S.A.</issuerName>
      <secFileNumber>001-36153</secFileNumber>
      <issuerAddress>
        <com:street1>32 RUE BLANCHE</com:street1>
        <com:city>PARIS</com:city>
        <com:stateOrCountry>I0</com:stateOrCountry>
        <com:zipCode>75009</com:zipCode>
      </issuerAddress>
      <issuerContactPhone>33175850939</issuerContactPhone>
      <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>Glickman Sarah JS</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
      <relationshipsToIssuer>
        <relationshipToIssuer>Officer</relationshipToIssuer>
        <relationshipToIssuer>CHIEF FINANCIAL OFFICER</relationshipToIssuer>
      </relationshipsToIssuer>
    </issuerInfo>
    <securitiesInformation>
      <securitiesClassTitle>ORDINARY SHARES</securitiesClassTitle>
      <brokerOrMarketmakerDetails>
        <name>CITIGROUP GLOBAL MARKETS INC</name>
        <address>
          <com:street1>390 GREENWICH STREET</com:street1>
          <com:city>NEW YORK</com:city>
          <com:stateOrCountry>NY</com:stateOrCountry>
          <com:zipCode>10013</com:zipCode>
        </address>
      </brokerOrMarketmakerDetails>
      <noOfUnitsSold>1943</noOfUnitsSold>
      <aggregateMarketValue>35906.83</aggregateMarketValue>
      <noOfUnitsOutstanding>49859086</noOfUnitsOutstanding>
      <approxSaleDate>03/03/2026</approxSaleDate>
      <securitiesExchangeName>NASDAQ</securitiesExchangeName>
    </securitiesInformation>
    <securitiesToBeSold>
      <securitiesClassTitle>ORDINARY SHARES</securitiesClassTitle>
      <acquiredDate>03/01/2024</acquiredDate>
      <natureOfAcquisitionTransaction>PERFORMANCE STOCK UNITS VESTING </natureOfAcquisitionTransaction>
      <nameOfPersonfromWhomAcquired>CRITEO S.A.</nameOfPersonfromWhomAcquired>
      <isGiftTransaction>N</isGiftTransaction>
      <amountOfSecuritiesAcquired>4915</amountOfSecuritiesAcquired>
      <paymentDate>03/03/2026</paymentDate>
      <natureOfPayment>COMPENSATION</natureOfPayment>
    </securitiesToBeSold>
    <nothingToReportFlagOnSecuritiesSoldInPast3Months>N</nothingToReportFlagOnSecuritiesSoldInPast3Months>
    <securitiesSoldInPast3Months>
      <sellerDetails>
        <name>SARAH GLICKMAN</name>
        <address>
          <com:street1>32 RUE BLANCHE</com:street1>
          <com:city>PARIS</com:city>
          <com:stateOrCountry>I0</com:stateOrCountry>
          <com:zipCode>75009</com:zipCode>
        </address>
      </sellerDetails>
      <securitiesClassTitle>ORDINARY SHARES</securitiesClassTitle>
      <saleDate>02/24/2026</saleDate>
      <amountOfSecuritiesSold>1541</amountOfSecuritiesSold>
      <grossProceeds>25753.35</grossProceeds>
    </securitiesSoldInPast3Months>
    <securitiesSoldInPast3Months>
      <sellerDetails>
        <name>SARAH GLICKMAN</name>
        <address>
          <com:street1>32 RUE BLANCHE</com:street1>
          <com:city>PARIS</com:city>
          <com:stateOrCountry>I0</com:stateOrCountry>
          <com:zipCode>75009</com:zipCode>
        </address>
      </sellerDetails>
      <securitiesClassTitle>ORDINARY SHARES</securitiesClassTitle>
      <saleDate>02/23/2026</saleDate>
      <amountOfSecuritiesSold>2796</amountOfSecuritiesSold>
      <grossProceeds>47014.46</grossProceeds>
    </securitiesSoldInPast3Months>
    <securitiesSoldInPast3Months>
      <sellerDetails>
        <name>SARAH GLICKMAN</name>
        <address>
          <com:street1>32 RUE BLANCHE</com:street1>
          <com:city>PARIS</com:city>
          <com:stateOrCountry>I0</com:stateOrCountry>
          <com:zipCode>75009</com:zipCode>
        </address>
      </sellerDetails>
      <securitiesClassTitle>ORDINARY SHARES</securitiesClassTitle>
      <saleDate>03/02/2026</saleDate>
      <amountOfSecuritiesSold>18304</amountOfSecuritiesSold>
      <grossProceeds>329372.53</grossProceeds>
    </securitiesSoldInPast3Months>
    <remarks>UNDER SECURITIES TO BE SOLD DATE ACQUIRED WAS MARCH  2024 . SECTION 3 D BASED ON INDICATIVE MARKET PRICE $18.4801. THESE SECURITIES WERE AUTOMATICALLY SOLD TO COVER TAX WITHHOLDING OBLIGATIONS ARISING FROM THE VESTING AND SETTLEMENT OF EQUITY AWARDS</remarks>
    <noticeSignature>
      <noticeDate>03/03/2026</noticeDate>
      <signature>CONFORMED SIGNATURE ON FILE</signature>
    </noticeSignature>
  </formData>
</edgarSubmission>
