<?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>0001769490</cik>
                    <ccc>XXXXXXXX</ccc>
                </filerCredentials>
            </filer>
            <liveTestFlag>LIVE</liveTestFlag>



        </filerInfo>
    </headerData>
    <formData>
        <issuerInfo>
            <issuerCik>0001517413</issuerCik>
            <issuerName>FASTLY INC CL A</issuerName>
            <secFileNumber>001-38897</secFileNumber>
            <issuerAddress>
                <ns2:street1>475 Brannan Street, Suite 300</ns2:street1>
                <ns2:city>San Francisco</ns2:city>
                <ns2:stateOrCountry>CA</ns2:stateOrCountry>
                <ns2:zipCode>94107</ns2:zipCode>
            </issuerAddress>
            <issuerContactPhone>8444327859</issuerContactPhone>
            <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>Per Artur Bergman</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
            <relationshipsToIssuer>
                <relationshipToIssuer>Officer</relationshipToIssuer>
            </relationshipsToIssuer>
        </issuerInfo>
        <securitiesInformation>
            <securitiesClassTitle>COMMON</securitiesClassTitle>
            <brokerOrMarketmakerDetails>
                <name>Morgan Stanley Smith Barney LLC Executive Financial Services</name>
                <address>
                    <ns2:street1>1 New York Plaza</ns2:street1>
                    <ns2:street2>38th Fl.</ns2:street2>
                    <ns2:city>New York</ns2:city>
                    <ns2:stateOrCountry>NY</ns2:stateOrCountry>
                    <ns2:zipCode>10004</ns2:zipCode>
                </address>
            </brokerOrMarketmakerDetails>
            <noOfUnitsSold>2700</noOfUnitsSold>
            <aggregateMarketValue>601015.92</aggregateMarketValue>
            <noOfUnitsOutstanding>127000000</noOfUnitsOutstanding>
            <approxSaleDate>05/23/2023</approxSaleDate>
            <securitiesExchangeName>NASDAQ</securitiesExchangeName>
        </securitiesInformation>
        <securitiesToBeSold>
            <securitiesClassTitle>Common</securitiesClassTitle>
            <acquiredDate>02/18/2022</acquiredDate>
            <natureOfAcquisitionTransaction>Previously Exercised Stock Options</natureOfAcquisitionTransaction>
            <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
            <isGiftTransaction>N</isGiftTransaction>
            <amountOfSecuritiesAcquired>2700</amountOfSecuritiesAcquired>
            <paymentDate>02/18/2022</paymentDate>
            <natureOfPayment>Cash</natureOfPayment>
        </securitiesToBeSold>
        <nothingToReportFlagOnSecuritiesSoldInPast3Months>N</nothingToReportFlagOnSecuritiesSoldInPast3Months>
        <securitiesSoldInPast3Months>
            <sellerDetails>
                <name>10b5-1 Sales Plan for PER ARTUR BERGMAN</name>
                <address>
                    <ns2:street1>475 Brannan Street, Suite 300</ns2:street1>
                    <ns2:city>San Francisco</ns2:city>
                    <ns2:stateOrCountry>CA</ns2:stateOrCountry>
                    <ns2:zipCode>94107</ns2:zipCode>
                </address>
            </sellerDetails>
            <securitiesClassTitle>Common</securitiesClassTitle>
            <saleDate>05/17/2023</saleDate>
            <amountOfSecuritiesSold>19311</amountOfSecuritiesSold>
            <grossProceeds>252943.20</grossProceeds>
        </securitiesSoldInPast3Months>
        <securitiesSoldInPast3Months>
            <sellerDetails>
                <name>10b5-1 Sales Plan for PER ARTUR BERGMAN</name>
                <address>
                    <ns2:street1>475 Brannan Street, Suite 300</ns2:street1>
                    <ns2:city>San Francisco</ns2:city>
                    <ns2:stateOrCountry>CA</ns2:stateOrCountry>
                    <ns2:zipCode>94107</ns2:zipCode>
                </address>
            </sellerDetails>
            <securitiesClassTitle>Common</securitiesClassTitle>
            <saleDate>04/24/2023</saleDate>
            <amountOfSecuritiesSold>11163</amountOfSecuritiesSold>
            <grossProceeds>178072.18</grossProceeds>
        </securitiesSoldInPast3Months>
        <securitiesSoldInPast3Months>
            <sellerDetails>
                <name>10b5-1 Sales Plan for PER ARTUR BERGMAN</name>
                <address>
                    <ns2:street1>475 Brannan Street, Suite 300</ns2:street1>
                    <ns2:city>San Francisco</ns2:city>
                    <ns2:stateOrCountry>CA</ns2:stateOrCountry>
                    <ns2:zipCode>94107</ns2:zipCode>
                </address>
            </sellerDetails>
            <securitiesClassTitle>Common</securitiesClassTitle>
            <saleDate>04/17/2023</saleDate>
            <amountOfSecuritiesSold>11163</amountOfSecuritiesSold>
            <grossProceeds>176215.77</grossProceeds>
        </securitiesSoldInPast3Months>
        <securitiesSoldInPast3Months>
            <sellerDetails>
                <name>10b5-1 Sales Plan for PER ARTUR BERGMAN</name>
                <address>
                    <ns2:street1>475 Brannan Street, Suite 300</ns2:street1>
                    <ns2:city>San Francisco</ns2:city>
                    <ns2:stateOrCountry>CA</ns2:stateOrCountry>
                    <ns2:zipCode>94107</ns2:zipCode>
                </address>
            </sellerDetails>
            <securitiesClassTitle>Common</securitiesClassTitle>
            <saleDate>04/10/2023</saleDate>
            <amountOfSecuritiesSold>11163</amountOfSecuritiesSold>
            <grossProceeds>172819.98</grossProceeds>
        </securitiesSoldInPast3Months>
        <securitiesSoldInPast3Months>
            <sellerDetails>
                <name>10b5-1 Sales Plan for PER ARTUR BERGMAN</name>
                <address>
                    <ns2:street1>475 Brannan Street, Suite 300</ns2:street1>
                    <ns2:city>San Francisco</ns2:city>
                    <ns2:stateOrCountry>CA</ns2:stateOrCountry>
                    <ns2:zipCode>94107</ns2:zipCode>
                </address>
            </sellerDetails>
            <securitiesClassTitle>Common</securitiesClassTitle>
            <saleDate>04/03/2023</saleDate>
            <amountOfSecuritiesSold>11163</amountOfSecuritiesSold>
            <grossProceeds>187111.97</grossProceeds>
        </securitiesSoldInPast3Months>
        <securitiesSoldInPast3Months>
            <sellerDetails>
                <name>10b5-1 Sales Plan for PER ARTUR BERGMAN</name>
                <address>
                    <ns2:street1>475 Brannan Street, Suite 300</ns2:street1>
                    <ns2:city>San Francisco</ns2:city>
                    <ns2:stateOrCountry>CA</ns2:stateOrCountry>
                    <ns2:zipCode>94107</ns2:zipCode>
                </address>
            </sellerDetails>
            <securitiesClassTitle>Common</securitiesClassTitle>
            <saleDate>03/27/2023</saleDate>
            <amountOfSecuritiesSold>11163</amountOfSecuritiesSold>
            <grossProceeds>181634.29</grossProceeds>
        </securitiesSoldInPast3Months>
        <securitiesSoldInPast3Months>
            <sellerDetails>
                <name>10b5-1 Sales Plan for PER ARTUR BERGMAN</name>
                <address>
                    <ns2:street1>475 Brannan Street, Suite 300</ns2:street1>
                    <ns2:city>San Francisco</ns2:city>
                    <ns2:stateOrCountry>CA</ns2:stateOrCountry>
                    <ns2:zipCode>94107</ns2:zipCode>
                </address>
            </sellerDetails>
            <securitiesClassTitle>Common</securitiesClassTitle>
            <saleDate>03/20/2023</saleDate>
            <amountOfSecuritiesSold>11163</amountOfSecuritiesSold>
            <grossProceeds>170861.99</grossProceeds>
        </securitiesSoldInPast3Months>
        <securitiesSoldInPast3Months>
            <sellerDetails>
                <name>10b5-1 Sales Plan for PER ARTUR BERGMAN</name>
                <address>
                    <ns2:street1>475 Brannan Street, Suite 300</ns2:street1>
                    <ns2:city>San Francisco</ns2:city>
                    <ns2:stateOrCountry>CA</ns2:stateOrCountry>
                    <ns2:zipCode>94107</ns2:zipCode>
                </address>
            </sellerDetails>
            <securitiesClassTitle>Common</securitiesClassTitle>
            <saleDate>03/16/2023</saleDate>
            <amountOfSecuritiesSold>11163</amountOfSecuritiesSold>
            <grossProceeds>175769.25</grossProceeds>
        </securitiesSoldInPast3Months>
        <securitiesSoldInPast3Months>
            <sellerDetails>
                <name>10b5-1 Sales Plan for PER ARTUR BERGMAN</name>
                <address>
                    <ns2:street1>475 Brannan Street, Suite 300</ns2:street1>
                    <ns2:city>San Francisco</ns2:city>
                    <ns2:stateOrCountry>CA</ns2:stateOrCountry>
                    <ns2:zipCode>94107</ns2:zipCode>
                </address>
            </sellerDetails>
            <securitiesClassTitle>Common</securitiesClassTitle>
            <saleDate>03/06/2023</saleDate>
            <amountOfSecuritiesSold>32388</amountOfSecuritiesSold>
            <grossProceeds>492062.27</grossProceeds>
        </securitiesSoldInPast3Months>
        <noticeSignature>
            <noticeDate>05/23/2023</noticeDate>
            <planAdoptionDates>
                <planAdoptionDate>06/06/2022</planAdoptionDate>
            </planAdoptionDates>
            <signature>/s/ Artur Bergman</signature>
        </noticeSignature>
    </formData>
</edgarSubmission>
[{"type": "144", "sequence": "1", "filename": "primary_doc.xml", "secsgml_size_bytes": 9919}]
144
0001769490
XXXXXXXX
LIVE
0001517413
FASTLY INC CL A
001-38897
475 Brannan Street, Suite 300
San Francisco
CA
94107
8444327859
Per Artur Bergman
Officer
COMMON
Morgan Stanley Smith Barney LLC Executive Financial Services
1 New York Plaza
38th Fl.
New York
NY
10004
2700
601015.92
127000000
05/23/2023
NASDAQ
Common
02/18/2022
Previously Exercised Stock Options
Issuer
N
2700
02/18/2022
Cash
N
10b5-1 Sales Plan for PER ARTUR BERGMAN
475 Brannan Street, Suite 300
San Francisco
CA
94107
Common
05/17/2023
19311
252943.20
10b5-1 Sales Plan for PER ARTUR BERGMAN
475 Brannan Street, Suite 300
San Francisco
CA
94107
Common
04/24/2023
11163
178072.18
10b5-1 Sales Plan for PER ARTUR BERGMAN
475 Brannan Street, Suite 300
San Francisco
CA
94107
Common
04/17/2023
11163
176215.77
10b5-1 Sales Plan for PER ARTUR BERGMAN
475 Brannan Street, Suite 300
San Francisco
CA
94107
Common
04/10/2023
11163
172819.98
10b5-1 Sales Plan for PER ARTUR BERGMAN
475 Brannan Street, Suite 300
San Francisco
CA
94107
Common
04/03/2023
11163
187111.97
10b5-1 Sales Plan for PER ARTUR BERGMAN
475 Brannan Street, Suite 300
San Francisco
CA
94107
Common
03/27/2023
11163
181634.29
10b5-1 Sales Plan for PER ARTUR BERGMAN
475 Brannan Street, Suite 300
San Francisco
CA
94107
Common
03/20/2023
11163
170861.99
10b5-1 Sales Plan for PER ARTUR BERGMAN
475 Brannan Street, Suite 300
San Francisco
CA
94107
Common
03/16/2023
11163
175769.25
10b5-1 Sales Plan for PER ARTUR BERGMAN
475 Brannan Street, Suite 300
San Francisco
CA
94107
Common
03/06/2023
32388
492062.27
05/23/2023
06/06/2022
/s/ Artur Bergman