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          <ccc>XXXXXXXX</ccc>
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      <liveTestFlag>LIVE</liveTestFlag>



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      <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>Hugh Yoon J.</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>16096</noOfUnitsSold>
      <aggregateMarketValue>341214.08</aggregateMarketValue>
      <noOfUnitsOutstanding>354139491</noOfUnitsOutstanding>
      <approxSaleDate>08/01/2023</approxSaleDate>
      <securitiesExchangeName>NASDAQ</securitiesExchangeName>
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    <securitiesToBeSold>
      <securitiesClassTitle>Common</securitiesClassTitle>
      <acquiredDate>02/07/2022</acquiredDate>
      <natureOfAcquisitionTransaction>Restricted Stock Vesting</natureOfAcquisitionTransaction>
      <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
      <isGiftTransaction>N</isGiftTransaction>
      <amountOfSecuritiesAcquired>7147</amountOfSecuritiesAcquired>
      <paymentDate>02/07/2022</paymentDate>
      <natureOfPayment>Compensation</natureOfPayment>
    </securitiesToBeSold>
    <securitiesToBeSold>
      <securitiesClassTitle>Common</securitiesClassTitle>
      <acquiredDate>04/30/2022</acquiredDate>
      <natureOfAcquisitionTransaction>Restricted Stock Vesting</natureOfAcquisitionTransaction>
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      <isGiftTransaction>N</isGiftTransaction>
      <amountOfSecuritiesAcquired>1369</amountOfSecuritiesAcquired>
      <paymentDate>04/30/2022</paymentDate>
      <natureOfPayment>Compensation</natureOfPayment>
    </securitiesToBeSold>
    <securitiesToBeSold>
      <securitiesClassTitle>Common</securitiesClassTitle>
      <acquiredDate>07/31/2022</acquiredDate>
      <natureOfAcquisitionTransaction>Restricted Stock Vesting</natureOfAcquisitionTransaction>
      <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
      <isGiftTransaction>N</isGiftTransaction>
      <amountOfSecuritiesAcquired>3278</amountOfSecuritiesAcquired>
      <paymentDate>07/31/2022</paymentDate>
      <natureOfPayment>Compensation</natureOfPayment>
    </securitiesToBeSold>
    <securitiesToBeSold>
      <securitiesClassTitle>Common</securitiesClassTitle>
      <acquiredDate>08/01/2022</acquiredDate>
      <natureOfAcquisitionTransaction>Restricted Stock Vesting</natureOfAcquisitionTransaction>
      <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
      <isGiftTransaction>N</isGiftTransaction>
      <amountOfSecuritiesAcquired>2455</amountOfSecuritiesAcquired>
      <paymentDate>08/01/2022</paymentDate>
      <natureOfPayment>Compensation</natureOfPayment>
    </securitiesToBeSold>
    <securitiesToBeSold>
      <securitiesClassTitle>Common</securitiesClassTitle>
      <acquiredDate>08/02/2022</acquiredDate>
      <natureOfAcquisitionTransaction>Restricted Stock Vesting</natureOfAcquisitionTransaction>
      <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
      <isGiftTransaction>N</isGiftTransaction>
      <amountOfSecuritiesAcquired>1847</amountOfSecuritiesAcquired>
      <paymentDate>08/02/2022</paymentDate>
      <natureOfPayment>Compensation</natureOfPayment>
    </securitiesToBeSold>
    <nothingToReportFlagOnSecuritiesSoldInPast3Months>N</nothingToReportFlagOnSecuritiesSoldInPast3Months>
    <securitiesSoldInPast3Months>
      <sellerDetails>
        <name>Yoon Hugh</name>
        <address>
          <com:street1>333 Continental Blvd.</com:street1>
          <com:city>El Segundo</com:city>
          <com:stateOrCountry>CA</com:stateOrCountry>
          <com:zipCode>90245</com:zipCode>
        </address>
      </sellerDetails>
      <securitiesClassTitle>Common</securitiesClassTitle>
      <saleDate>07/31/2023</saleDate>
      <amountOfSecuritiesSold>38677</amountOfSecuritiesSold>
      <grossProceeds>827598.31</grossProceeds>
    </securitiesSoldInPast3Months>
    <noticeSignature>
      <noticeDate>08/01/2023</noticeDate>
      <signature>/s/ Ryan Riviere, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for Yoon J. Hugh</signature>
    </noticeSignature>
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144
0001474865
XXXXXXXX
LIVE
0000063276
MATTEL INC /DE/
001-05647
333 CONTINENTAL BLVD
EL SEGUNDO
CA
90245
3102522000
Hugh Yoon J.
Officer
Common
Fidelity Brokerage Services LLC
900 Salem Street
Smithfield
RI
02917
16096
341214.08
354139491
08/01/2023
NASDAQ
Common
02/07/2022
Restricted Stock Vesting
Issuer
N
7147
02/07/2022
Compensation
Common
04/30/2022
Restricted Stock Vesting
Issuer
N
1369
04/30/2022
Compensation
Common
07/31/2022
Restricted Stock Vesting
Issuer
N
3278
07/31/2022
Compensation
Common
08/01/2022
Restricted Stock Vesting
Issuer
N
2455
08/01/2022
Compensation
Common
08/02/2022
Restricted Stock Vesting
Issuer
N
1847
08/02/2022
Compensation
N
Yoon Hugh
333 Continental Blvd.
El Segundo
CA
90245
Common
07/31/2023
38677
827598.31
08/01/2023
/s/ Ryan Riviere, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for Yoon J. Hugh