    <SEC-DOCUMENT>0001387131-21-005916-index.html : 20210520
    <SEC-HEADER>0001387131-21-005916.hdr.sgml : 20210520
    <ACCEPTANCE-DATETIME>20210520171740
    ACCESSION NUMBER:		0001387131-21-005916
    CONFORMED SUBMISSION TYPE:	DEFA14A
    PUBLIC DOCUMENT COUNT:		9
    FILED AS OF DATE:		20210520
    DATE AS OF CHANGE:		20210520

    FILER:

    	COMPANY DATA:
    		COMPANY CONFORMED NAME:			OneSpan 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:		DEFA14A
    		SEC ACT:		1934 Act
    		SEC FILE NUMBER:	000-24389
    		FILM NUMBER:		21945467

    	BUSINESS ADDRESS:
    		STREET 1:		121 W WACKER DR.
    		STREET 2:		STE 2050
    		CITY:			CHICAGO
    		STATE:			IL
    		ZIP:			60601
    		BUSINESS PHONE:		3127664001

    	MAIL ADDRESS:
    		STREET 1:		121 W WACKER DR.
    		STREET 2:		STE 2050
    		CITY:			CHICAGO
    		STATE:			IL
    		ZIP:			60601

    	FORMER COMPANY:
    		FORMER CONFORMED NAME:	One Span Inc.
    		DATE OF NAME CHANGE:	20180706

    	FORMER COMPANY:
    		FORMER CONFORMED NAME:	VASCO DATA SECURITY INTERNATIONAL INC
    		DATE OF NAME CHANGE:	19970821
    </SEC-HEADER>
    <DOCUMENT>
    <TYPE>DEFA14A
    <SEQUENCE>1
    <FILENAME>ospn-defa14a_052021.htm
    <DESCRIPTION>ADDITIONAL DEFINITIVE PROXY SOLICITING MATERIALS
    <TEXT>
    Document 1 - file: ospn-defa14a_052021.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>2
    <FILENAME>ospn-001a.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 2 - file: ospn-001a.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>3
    <FILENAME>ospn-001b.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 3 - file: ospn-001b.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>4
    <FILENAME>ospn-001c.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 4 - file: ospn-001c.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>5
    <FILENAME>ospn-001d.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 5 - file: ospn-001d.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>6
    <FILENAME>ospn-001e.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 6 - file: ospn-001e.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>7
    <FILENAME>ospn-002.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 7 - file: ospn-002.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>8
    <FILENAME>ospn-003.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 8 - file: ospn-003.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>9
    <FILENAME>ospn-004.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 9 - file: ospn-004.jpg

    </DOCUMENT>
    </SEC-DOCUMENT>