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Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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MIC-Info: RSA-MD5,RSA,
 GkgVUSYDiPD/JomSGSS7LporaWMr6TSp5GOO+DwwChrrO87+2hMlpm3ov9+RlAMe
 5LwgfHG0enX39003HRxIfA==

<SEC-DOCUMENT>0001179110-07-006347.txt : 20070319
<SEC-HEADER>0001179110-07-006347.hdr.sgml : 20070319
<ACCEPTANCE-DATETIME>20070319174549
ACCESSION NUMBER:		0001179110-07-006347
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20070315
FILED AS OF DATE:		20070319
DATE AS OF CHANGE:		20070319

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			VONAGE HOLDINGS CORP
		CENTRAL INDEX KEY:			0001272830
		STANDARD INDUSTRIAL CLASSIFICATION:	TELEPHONE COMMUNICATIONS (NO RADIO TELEPHONE) [4813]
		IRS NUMBER:				113547680
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		23 MAIN STREET
		CITY:			HOLMDEL
		STATE:			NJ
		ZIP:			07733
		BUSINESS PHONE:		732-528-2600

	MAIL ADDRESS:	
		STREET 1:		23 MAIN STREET
		CITY:			HOLMDEL
		STATE:			NJ
		ZIP:			07733

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			OLEARY SHARON A
		CENTRAL INDEX KEY:			0001205510

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-51947
		FILM NUMBER:		07704522

	BUSINESS ADDRESS:	
		STREET 1:		9197 S PEORIA ST
		CITY:			ENGELWOOD
		STATE:			CO
		ZIP:			80112
		BUSINESS PHONE:		3033978550

	MAIL ADDRESS:	
		STREET 1:		9197 S PEORIA ST
		CITY:			ENGLEWOOD
		STATE:			CO
		ZIP:			80112
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>edgar.xml
<DESCRIPTION>FORM 4 -
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0202</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2007-03-15</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001272830</issuerCik>
        <issuerName>VONAGE HOLDINGS CORP</issuerName>
        <issuerTradingSymbol>VG</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001205510</rptOwnerCik>
            <rptOwnerName>OLEARY SHARON A</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O VONAGE HOLDINGS CORP</rptOwnerStreet1>
            <rptOwnerStreet2>23 MAIN STREET</rptOwnerStreet2>
            <rptOwnerCity>HOLMDEL</rptOwnerCity>
            <rptOwnerState>NJ</rptOwnerState>
            <rptOwnerZipCode>07733</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>Chief Legal Officer/Secretary</officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable></nonDerivativeTable>

    <derivativeTable>
        <derivativeTransaction>
            <securityTitle>
                <value>Employee Stock Option (Right to Buy)</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>4.16</value>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2007-03-15</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>155000</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <footnoteId id="F1"/>
            </exerciseDate>
            <expirationDate>
                <value>2012-03-15</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>155000</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>155000</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeTransaction>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">The employee stock option vests in equal annual installments on the first through fourth anniversaries of March 15, 2007.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>/s/ Sharon A. O'Leary</signatureName>
        <signatureDate>2007-03-19</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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