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        <filer>
          <filerCredentials>
            <cik>0001227891</cik>
            <ccc>XXXXXXXX</ccc>
          </filerCredentials>
        </filer>
        <liveTestFlag>LIVE</liveTestFlag>
  
  
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      <issuerInfo>
        <issuerCik>0001043604</issuerCik>
        <issuerName>JUNIPER NETWORKS INC</issuerName>
        <secFileNumber>001-34501</secFileNumber>
        <issuerAddress>
          <com:street1>1133 INNOVATION WAY</com:street1>
          <com:city>SUNNYVALE</com:city>
          <com:stateOrCountry>CA</com:stateOrCountry>
          <com:zipCode>94089</com:zipCode>
        </issuerAddress>
        <issuerContactPhone>4087452000</issuerContactPhone>
        <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>DENUCCIO KEVIN A</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
        <relationshipsToIssuer>
          <relationshipToIssuer>Director</relationshipToIssuer>
        </relationshipsToIssuer>
      </issuerInfo>
      <securitiesInformation>
        <securitiesClassTitle>Common</securitiesClassTitle>
        <brokerOrMarketmakerDetails>
          <name>Fidelity Brokerage Services LLC</name>
          <address>
            <com:street1>245 Summer Street</com:street1>
            <com:city>Boston</com:city>
            <com:stateOrCountry>MA</com:stateOrCountry>
            <com:zipCode>02110</com:zipCode>
          </address>
        </brokerOrMarketmakerDetails>
        <noOfUnitsSold>3500</noOfUnitsSold>
        <aggregateMarketValue>129675.00</aggregateMarketValue>
        <noOfUnitsOutstanding>321907366</noOfUnitsOutstanding>
        <approxSaleDate>02/16/2024</approxSaleDate>
        <securitiesExchangeName>NYSE</securitiesExchangeName>
      </securitiesInformation>
      <securitiesToBeSold>
        <securitiesClassTitle>Common</securitiesClassTitle>
        <acquiredDate>05/28/2019</acquiredDate>
        <natureOfAcquisitionTransaction>Stock Award</natureOfAcquisitionTransaction>
        <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
        <isGiftTransaction>N</isGiftTransaction>
        <amountOfSecuritiesAcquired>3500</amountOfSecuritiesAcquired>
        <paymentDate>05/28/2019</paymentDate>
        <natureOfPayment>Compensation</natureOfPayment>
      </securitiesToBeSold>
      <nothingToReportFlagOnSecuritiesSoldInPast3Months>N</nothingToReportFlagOnSecuritiesSoldInPast3Months>
      <securitiesSoldInPast3Months>
        <sellerDetails>
          <name>Kevin Denuccio</name>
          <address>
            <com:street1>1133 Innovation Way</com:street1>
            <com:city>Sunnyvale</com:city>
            <com:stateOrCountry>CA</com:stateOrCountry>
            <com:zipCode>94089</com:zipCode>
          </address>
        </sellerDetails>
        <securitiesClassTitle>Common</securitiesClassTitle>
        <saleDate>02/15/2024</saleDate>
        <amountOfSecuritiesSold>4000</amountOfSecuritiesSold>
        <grossProceeds>148000.00</grossProceeds>
      </securitiesSoldInPast3Months>
      <noticeSignature>
        <noticeDate>02/16/2024</noticeDate>
        <signature>/s/ Cristina Garcia, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for DENUCCIO KEVIN A</signature>
      </noticeSignature>
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text: 144
  0001227891
  XXXXXXXX
  LIVE
  0001043604
  JUNIPER NETWORKS INC
  001-34501
  1133 INNOVATION WAY
  SUNNYVALE
  CA
  94089
  4087452000
  DENUCCIO KEVIN A
  Director
  Common
  Fidelity Brokerage Services LLC
  245 Summer Street
  Boston
  MA
  02110
  3500
  129675.00
  321907366
  02/16/2024
  NYSE
  Common
  05/28/2019
  Stock Award
  Issuer
  N
  3500
  05/28/2019
  Compensation
  N
  Kevin Denuccio
  1133 Innovation Way
  Sunnyvale
  CA
  94089
  Common
  02/15/2024
  4000
  148000.00
  02/16/2024
  /s/ Cristina Garcia, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for DENUCCIO KEVIN A