<?xml version="1.0" encoding="UTF-8"?><edgarSubmission xmlns="http://www.sec.gov/edgar/ownership" xmlns:ns2="http://www.sec.gov/edgar/common">
    <headerData>
        <submissionType>144</submissionType>
        <filerInfo>
            <filer>
                <filerCredentials>
                    <cik>0001666360</cik>
                    <ccc>XXXXXXXX</ccc>
                </filerCredentials>
            </filer>
            <liveTestFlag>LIVE</liveTestFlag>



        </filerInfo>
    </headerData>
    <formData>
        <issuerInfo>
            <issuerCik>0001043604</issuerCik>
            <issuerName>JUNIPER NETWORKS INC.</issuerName>
            <secFileNumber>001-34501</secFileNumber>
            <issuerAddress>
                <ns2:street1>1133 Innovation Way</ns2:street1>
                <ns2:city>Sunnyvale</ns2:city>
                <ns2:stateOrCountry>CA</ns2:stateOrCountry>
                <ns2:zipCode>94089</ns2:zipCode>
            </issuerAddress>
            <issuerContactPhone>(408) 745-2000</issuerContactPhone>
            <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>KENNETH MILLER</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
            <relationshipsToIssuer>
                <relationshipToIssuer>Officer</relationshipToIssuer>
            </relationshipsToIssuer>
        </issuerInfo>
        <securitiesInformation>
            <securitiesClassTitle>Common</securitiesClassTitle>
            <brokerOrMarketmakerDetails>
                <name>E*TRADE FINANCIAL CORPORATION</name>
                <address>
                    <ns2:street1>3 EDISON DRIVE</ns2:street1>
                    <ns2:city>ALPHARETTA</ns2:city>
                    <ns2:stateOrCountry>GA</ns2:stateOrCountry>
                    <ns2:zipCode>30005</ns2:zipCode>
                </address>
            </brokerOrMarketmakerDetails>
            <noOfUnitsSold>15000</noOfUnitsSold>
            <aggregateMarketValue>414075.00</aggregateMarketValue>
            <noOfUnitsOutstanding>321360120</noOfUnitsOutstanding>
            <approxSaleDate>08/15/2023</approxSaleDate>
            <securitiesExchangeName>NYSE</securitiesExchangeName>
        </securitiesInformation>
        <securitiesToBeSold>
            <securitiesClassTitle>COMMON</securitiesClassTitle>
            <acquiredDate>03/20/2017</acquiredDate>
            <natureOfAcquisitionTransaction>Restricted Stock</natureOfAcquisitionTransaction>
            <nameOfPersonfromWhomAcquired>ISSUER</nameOfPersonfromWhomAcquired>
            <isGiftTransaction>N</isGiftTransaction>
            <amountOfSecuritiesAcquired>2099</amountOfSecuritiesAcquired>
            <paymentDate>03/20/2017</paymentDate>
            <natureOfPayment>Not Applicable</natureOfPayment>
        </securitiesToBeSold>
        <securitiesToBeSold>
            <securitiesClassTitle>COMMON</securitiesClassTitle>
            <acquiredDate>02/17/2018</acquiredDate>
            <natureOfAcquisitionTransaction>Restricted Stock</natureOfAcquisitionTransaction>
            <nameOfPersonfromWhomAcquired>ISSUER</nameOfPersonfromWhomAcquired>
            <isGiftTransaction>N</isGiftTransaction>
            <amountOfSecuritiesAcquired>5789</amountOfSecuritiesAcquired>
            <paymentDate>02/17/2018</paymentDate>
            <natureOfPayment>Not Applicable</natureOfPayment>
        </securitiesToBeSold>
        <securitiesToBeSold>
            <securitiesClassTitle>COMMON</securitiesClassTitle>
            <acquiredDate>03/20/2018</acquiredDate>
            <natureOfAcquisitionTransaction>Restricted Stock</natureOfAcquisitionTransaction>
            <nameOfPersonfromWhomAcquired>ISSUER</nameOfPersonfromWhomAcquired>
            <isGiftTransaction>N</isGiftTransaction>
            <amountOfSecuritiesAcquired>900</amountOfSecuritiesAcquired>
            <paymentDate>03/20/2018</paymentDate>
            <natureOfPayment>Not Applicable</natureOfPayment>
        </securitiesToBeSold>
        <securitiesToBeSold>
            <securitiesClassTitle>COMMON</securitiesClassTitle>
            <acquiredDate>06/20/2017</acquiredDate>
            <natureOfAcquisitionTransaction>Restricted Stock</natureOfAcquisitionTransaction>
            <nameOfPersonfromWhomAcquired>ISSUER</nameOfPersonfromWhomAcquired>
            <isGiftTransaction>N</isGiftTransaction>
            <amountOfSecuritiesAcquired>2761</amountOfSecuritiesAcquired>
            <paymentDate>06/20/2017</paymentDate>
            <natureOfPayment>Not Applicable</natureOfPayment>
        </securitiesToBeSold>
        <securitiesToBeSold>
            <securitiesClassTitle>COMMON</securitiesClassTitle>
            <acquiredDate>02/22/2018</acquiredDate>
            <natureOfAcquisitionTransaction>Restricted Stock</natureOfAcquisitionTransaction>
            <nameOfPersonfromWhomAcquired>ISSUER</nameOfPersonfromWhomAcquired>
            <isGiftTransaction>N</isGiftTransaction>
            <amountOfSecuritiesAcquired>3451</amountOfSecuritiesAcquired>
            <paymentDate>02/22/2018</paymentDate>
            <natureOfPayment>Not Applicable</natureOfPayment>
        </securitiesToBeSold>
        <nothingToReportFlagOnSecuritiesSoldInPast3Months>Y</nothingToReportFlagOnSecuritiesSoldInPast3Months>
        <noticeSignature>
            <noticeDate>08/15/2023</noticeDate>
            <planAdoptionDates>
                <planAdoptionDate>03/14/2023</planAdoptionDate>
            </planAdoptionDates>
            <signature>/s/ Kenneth B Miller</signature>
        </noticeSignature>
    </formData>
</edgarSubmission>
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144
0001666360
XXXXXXXX
LIVE
0001043604
JUNIPER NETWORKS INC.
001-34501
1133 Innovation Way
Sunnyvale
CA
94089
(408) 745-2000
KENNETH MILLER
Officer
Common
E*TRADE FINANCIAL CORPORATION
3 EDISON DRIVE
ALPHARETTA
GA
30005
15000
414075.00
321360120
08/15/2023
NYSE
COMMON
03/20/2017
Restricted Stock
ISSUER
N
2099
03/20/2017
Not Applicable
COMMON
02/17/2018
Restricted Stock
ISSUER
N
5789
02/17/2018
Not Applicable
COMMON
03/20/2018
Restricted Stock
ISSUER
N
900
03/20/2018
Not Applicable
COMMON
06/20/2017
Restricted Stock
ISSUER
N
2761
06/20/2017
Not Applicable
COMMON
02/22/2018
Restricted Stock
ISSUER
N
3451
02/22/2018
Not Applicable
Y
08/15/2023
03/14/2023
/s/ Kenneth B Miller