content: <?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>0001285140</cik>
            <ccc>XXXXXXXX</ccc>
          </filerCredentials>
        </filer>
        <liveTestFlag>LIVE</liveTestFlag>
  
  
  
      </filerInfo>
    </headerData>
    <formData>
      <issuerInfo>
        <issuerCik>0000063276</issuerCik>
        <issuerName>MATTEL INC /DE/</issuerName>
        <secFileNumber>001-05647</secFileNumber>
        <issuerAddress>
          <com:street1>333 CONTINENTAL BLVD</com:street1>
          <com:city>EL SEGUNDO</com:city>
          <com:stateOrCountry>CA</com:stateOrCountry>
          <com:zipCode>90245</com:zipCode>
        </issuerAddress>
        <issuerContactPhone>3102522000</issuerContactPhone>
        <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>DISILVESTRO ANTHONY</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
        <relationshipsToIssuer>
          <relationshipToIssuer>Officer</relationshipToIssuer>
        </relationshipsToIssuer>
      </issuerInfo>
      <securitiesInformation>
        <securitiesClassTitle>Common</securitiesClassTitle>
        <brokerOrMarketmakerDetails>
          <name>Fidelity Brokerage Services LLC</name>
          <address>
            <com:street1>900 Salem Street</com:street1>
            <com:city>Smithfield</com:city>
            <com:stateOrCountry>RI</com:stateOrCountry>
            <com:zipCode>02917</com:zipCode>
          </address>
        </brokerOrMarketmakerDetails>
        <noOfUnitsSold>25462</noOfUnitsSold>
        <aggregateMarketValue>510362.80</aggregateMarketValue>
        <noOfUnitsOutstanding>322900000</noOfUnitsOutstanding>
        <approxSaleDate>07/22/2025</approxSaleDate>
        <securitiesExchangeName>NASDAQ</securitiesExchangeName>
      </securitiesInformation>
      <securitiesToBeSold>
        <securitiesClassTitle>Common</securitiesClassTitle>
        <acquiredDate>07/22/2025</acquiredDate>
        <natureOfAcquisitionTransaction>Option Granted - 04/28/2023</natureOfAcquisitionTransaction>
        <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
        <isGiftTransaction>N</isGiftTransaction>
        <amountOfSecuritiesAcquired>25462</amountOfSecuritiesAcquired>
        <paymentDate>07/22/2025</paymentDate>
        <natureOfPayment>Cash</natureOfPayment>
      </securitiesToBeSold>
      <nothingToReportFlagOnSecuritiesSoldInPast3Months>N</nothingToReportFlagOnSecuritiesSoldInPast3Months>
      <securitiesSoldInPast3Months>
        <sellerDetails>
          <name>Anthony Disilvestro</name>
          <address>
            <com:street1>333 Continental Blvd.</com:street1>
            <com:city>El Segundo</com:city>
            <com:stateOrCountry>CA</com:stateOrCountry>
            <com:zipCode>90245-5012</com:zipCode>
          </address>
        </sellerDetails>
        <securitiesClassTitle>Common</securitiesClassTitle>
        <saleDate>05/16/2025</saleDate>
        <amountOfSecuritiesSold>362704</amountOfSecuritiesSold>
        <grossProceeds>7288806.96</grossProceeds>
      </securitiesSoldInPast3Months>
      <noticeSignature>
        <noticeDate>07/22/2025</noticeDate>
        <signature>/s/ Daniel Tucci, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for Anthony Disilvestro</signature>
      </noticeSignature>
    </formData>
  </edgarSubmission>
metadata_documents: [{"type": "144", "sequence": "1", "filename": "primary_doc.xml", "secsgml_size_bytes": 3436}]
text: 144
  0001285140
  XXXXXXXX
  LIVE
  0000063276
  MATTEL INC /DE/
  001-05647
  333 CONTINENTAL BLVD
  EL SEGUNDO
  CA
  90245
  3102522000
  DISILVESTRO ANTHONY
  Officer
  Common
  Fidelity Brokerage Services LLC
  900 Salem Street
  Smithfield
  RI
  02917
  25462
  510362.80
  322900000
  07/22/2025
  NASDAQ
  Common
  07/22/2025
  Option Granted - 04/28/2023
  Issuer
  N
  25462
  07/22/2025
  Cash
  N
  Anthony Disilvestro
  333 Continental Blvd.
  El Segundo
  CA
  90245-5012
  Common
  05/16/2025
  362704
  7288806.96
  07/22/2025
  /s/ Daniel Tucci, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for Anthony Disilvestro