<SEC-DOCUMENT>0000899715-17-000127.txt : 20170815
<SEC-HEADER>0000899715-17-000127.hdr.sgml : 20170815
<ACCEPTANCE-DATETIME>20170815163540
ACCESSION NUMBER:		0000899715-17-000127
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20170815
FILED AS OF DATE:		20170815
DATE AS OF CHANGE:		20170815

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			CITRIN JEFFREY B
		CENTRAL INDEX KEY:			0001019975

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-11986
		FILM NUMBER:		171034281

	MAIL ADDRESS:	
		STREET 1:		950 THIRD AVENUE
		STREET 2:		17TH FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10022

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			TANGER FACTORY OUTLET CENTERS INC
		CENTRAL INDEX KEY:			0000899715
		STANDARD INDUSTRIAL CLASSIFICATION:	REAL ESTATE INVESTMENT TRUSTS [6798]
		IRS NUMBER:				561815473
		STATE OF INCORPORATION:			NC
		FISCAL YEAR END:			0101

	BUSINESS ADDRESS:	
		STREET 1:		3200 NORTHLINE AVENUE SUITE 360
		CITY:			GREENSBORO
		STATE:			NC
		ZIP:			27408
		BUSINESS PHONE:		3362923010

	MAIL ADDRESS:	
		STREET 1:		3200 NORTHLINE AVENUE SUITE 360
		CITY:			GREENSBORO
		STATE:			NC
		ZIP:			27408
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>wf-form4_150282932604972.xml
<DESCRIPTION>FORM 4
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0306</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2017-08-15</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0000899715</issuerCik>
        <issuerName>TANGER FACTORY OUTLET CENTERS INC</issuerName>
        <issuerTradingSymbol>SKT</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001019975</rptOwnerCik>
            <rptOwnerName>CITRIN JEFFREY B</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>350 PARK AVENUE</rptOwnerStreet1>
            <rptOwnerStreet2>15TH FLOOR</rptOwnerStreet2>
            <rptOwnerCity>NEW YORK</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>10022</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle></officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2017-08-15</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>937.25</value>
                    <footnoteId id="F1"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>23331.43</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <derivativeTable></derivativeTable>

    <footnotes>
        <footnote id="F1">Represents deferred share units issued pursuant to the Director Deferred Share Program of Tanger Factory Outlet Centers, Inc. and Tanger Properties Limited Partnership. Each deferred share unit is equivalent to one common share. The deferred share units become payable in common shares on January 15, 2024.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ James F. Williams, attorney-in-fact for Mr. Citrin</signatureName>
        <signatureDate>2017-08-15</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
