<SEC-DOCUMENT>0001415889-24-010462.txt : 20240405
<SEC-HEADER>0001415889-24-010462.hdr.sgml : 20240405
<ACCEPTANCE-DATETIME>20240405194651
ACCESSION NUMBER:		0001415889-24-010462
CONFORMED SUBMISSION TYPE:	4/A
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20240220
FILED AS OF DATE:		20240405
DATE AS OF CHANGE:		20240405

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Morici John
		CENTRAL INDEX KEY:			0001689552
		ORGANIZATION NAME:           	

	FILING VALUES:
		FORM TYPE:		4/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-32259
		FILM NUMBER:		24827853

	MAIL ADDRESS:	
		STREET 1:		C/O ALIGN TECHNOLOGY INC.
		STREET 2:		2820 ORCHARD PARKWAY
		CITY:			SAN JOSE
		STATE:			CA
		ZIP:			94131

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			ALIGN TECHNOLOGY INC
		CENTRAL INDEX KEY:			0001097149
		STANDARD INDUSTRIAL CLASSIFICATION:	ORTHOPEDIC, PROSTHETIC & SURGICAL APPLIANCES & SUPPLIES [3842]
		ORGANIZATION NAME:           	08 Industrial Applications and Services
		IRS NUMBER:				943267295
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		410 NORTH SCOTTSDALE ROAD, SUITE 1300
		CITY:			TEMPE
		STATE:			AZ
		ZIP:			85288
		BUSINESS PHONE:		408-470-1000

	MAIL ADDRESS:	
		STREET 1:		410 NORTH SCOTTSDALE ROAD, SUITE 1300
		CITY:			TEMPE
		STATE:			AZ
		ZIP:			85288
</SEC-HEADER>
<DOCUMENT>
<TYPE>4/A
<SEQUENCE>1
<FILENAME>form4a-04052024_110445.xml
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0508</schemaVersion>

    <documentType>4/A</documentType>

    <periodOfReport>2024-02-20</periodOfReport>

    <dateOfOriginalSubmission>2024-02-22</dateOfOriginalSubmission>

    <issuer>
        <issuerCik>0001097149</issuerCik>
        <issuerName>ALIGN TECHNOLOGY INC</issuerName>
        <issuerTradingSymbol>ALGN</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001689552</rptOwnerCik>
            <rptOwnerName>Morici John</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O ALIGN TECHNOLOGY INC.</rptOwnerStreet1>
            <rptOwnerStreet2>410 NO. SCOTTSDALE RD., SUITE 1300</rptOwnerStreet2>
            <rptOwnerCity>TEMPE</rptOwnerCity>
            <rptOwnerState>AZ</rptOwnerState>
            <rptOwnerZipCode>85281</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>false</isDirector>
            <isOfficer>true</isOfficer>
            <isTenPercentOwner>false</isTenPercentOwner>
            <isOther>false</isOther>
            <officerTitle>EVP &amp; CHIEF FINANCIAL OFFICER</officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <aff10b5One>0</aff10b5One>

    <nonDerivativeTable>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>12992</value>
                    <footnoteId id="F1"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value></value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <derivativeTable></derivativeTable>

    <footnotes>
        <footnote id="F1">This Form 4A is being filed solely for the purpose of correcting the beneficial ownership of shares by the Reporting Person following the transactions reported in the Form 4 filed on February 22, 2024.   An administrative error resulted in the under withholding of 7 shares for the payment of taxes.  Such shares have been refunded to the Reporting Person and are now included in his beneficial ownership information.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>/s/ Julie Ann Coletti Attorney-in-Fact for John Morici</signatureName>
        <signatureDate>2024-04-04</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
