<?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</name>
        <address>
          <com:street1>390 GREENWICH ST</com:street1>
          <com:city>NEW YORK</com:city>
          <com:stateOrCountry>NY</com:stateOrCountry>
          <com:zipCode>10013</com:zipCode>
        </address>
      </brokerOrMarketmakerDetails>
      <noOfUnitsSold>3981</noOfUnitsSold>
      <aggregateMarketValue>95782.06</aggregateMarketValue>
      <noOfUnitsOutstanding>52327360</noOfUnitsOutstanding>
      <approxSaleDate>08/25/2025</approxSaleDate>
      <securitiesExchangeName>NASDAQ</securitiesExchangeName>
    </securitiesInformation>
    <securitiesToBeSold>
      <securitiesClassTitle>ORDINARY SHARES</securitiesClassTitle>
      <acquiredDate>02/24/2022</acquiredDate>
      <natureOfAcquisitionTransaction>RESTRICTED STOCK UNITS VESTING AND PERFORMANCE STOCK UNITS VESTING</natureOfAcquisitionTransaction>
      <nameOfPersonfromWhomAcquired>CRITEO S.A.</nameOfPersonfromWhomAcquired>
      <isGiftTransaction>N</isGiftTransaction>
      <amountOfSecuritiesAcquired>10076</amountOfSecuritiesAcquired>
      <paymentDate>08/25/2025</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>05/27/2025</saleDate>
      <amountOfSecuritiesSold>1520</amountOfSecuritiesSold>
      <grossProceeds>39699.51</grossProceeds>
    </securitiesSoldInPast3Months>
    <remarks>3 D BASED ON INDICATIVE MARKET PRICE 24.0598.THESE SECURITIES WERE SOLD AUTOMATICALLY TO COVER TAX WITHHOLDING OBLIGATIONS ARISING FROM THE VESTING AND SETTLEMENT OF EQUITY AWARDS. DATE ACQUIRED UNDER SECURITIES TO BE SOLD FEB 24 2022 AND FEB 23 2023</remarks>
    <noticeSignature>
      <noticeDate>08/25/2025</noticeDate>
      <signature>CONFORMED SIGNATURE ON FILE</signature>
    </noticeSignature>
  </formData>
</edgarSubmission>
