    <SEC-DOCUMENT>0001193125-17-137010-index.html : 20170425
    <SEC-HEADER>0001193125-17-137010.hdr.sgml : 20170425
    <ACCEPTANCE-DATETIME>20170425172606
    ACCESSION NUMBER:		0001193125-17-137010
    CONFORMED SUBMISSION TYPE:	DEF 14A
    PUBLIC DOCUMENT COUNT:		9
    CONFORMED PERIOD OF REPORT:	20170614
    FILED AS OF DATE:		20170425
    DATE AS OF CHANGE:		20170425
    EFFECTIVENESS DATE:		20170425

    FILER:

    	COMPANY DATA:
    		COMPANY CONFORMED NAME:			VASCO DATA SECURITY INTERNATIONAL INC
    		CENTRAL INDEX KEY:			0001044777
    		STANDARD INDUSTRIAL CLASSIFICATION:	SERVICES-COMPUTER INTEGRATED SYSTEMS DESIGN [7373]
    		IRS NUMBER:				364169320
    		STATE OF INCORPORATION:			DE
    		FISCAL YEAR END:			1231

    	FILING VALUES:
    		FORM TYPE:		DEF 14A
    		SEC ACT:		1934 Act
    		SEC FILE NUMBER:	000-24389
    		FILM NUMBER:		17782009

    	BUSINESS ADDRESS:
    		STREET 1:		1901 SOUTH MYERS ROAD
    		STREET 2:		SUITE 210
    		CITY:			OAKBROOK TERRACE
    		STATE:			IL
    		ZIP:			60181
    		BUSINESS PHONE:		6309328844

    	MAIL ADDRESS:
    		STREET 1:		1919 S HIGHLAND AVE
    		STREET 2:		STE 118 C
    		CITY:			LOMBARD
    		STATE:			IL
    		ZIP:			60148
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    <SEQUENCE>1
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    <DESCRIPTION>DEF 14A
    <TEXT>
    Document 1 - file: d240533ddef14a.htm

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    <TEXT>
    Document 2 - file: g240533g06d37.jpg

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    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 3 - file: g240533g12k51.jpg

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    <TEXT>
    Document 4 - file: g240533g22s63.jpg

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    Document 5 - file: g240533g60c49.jpg

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    Document 6 - file: g240533g67e03.jpg

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    <SEQUENCE>7
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    <DESCRIPTION>GRAPHIC
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    Document 7 - file: g240533g86t42.jpg

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    Document 8 - file: g240533img5.jpg

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    Document 9 - file: g240533img6.jpg

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