    <SEC-DOCUMENT>0001193125-22-107987-index.html : 20220418
    <SEC-HEADER>0001193125-22-107987.hdr.sgml : 20220418
    <ACCEPTANCE-DATETIME>20220418160155
    ACCESSION NUMBER:		0001193125-22-107987
    CONFORMED SUBMISSION TYPE:	DEF 14A
    PUBLIC DOCUMENT COUNT:		13
    CONFORMED PERIOD OF REPORT:	20220601
    FILED AS OF DATE:		20220418
    DATE AS OF CHANGE:		20220418

    FILER:

    	COMPANY DATA:
    		COMPANY CONFORMED NAME:			ACI WORLDWIDE, INC.
    		CENTRAL INDEX KEY:			0000935036
    		STANDARD INDUSTRIAL CLASSIFICATION:	SERVICES-PREPACKAGED SOFTWARE [7372]
    		IRS NUMBER:				470772104
    		STATE OF INCORPORATION:			DE
    		FISCAL YEAR END:			1231

    	FILING VALUES:
    		FORM TYPE:		DEF 14A
    		SEC ACT:		1934 Act
    		SEC FILE NUMBER:	000-25346
    		FILM NUMBER:		22832155

    	BUSINESS ADDRESS:
    		STREET 1:		3520 KRAFT ROAD, SUITE 300
    		CITY:			NAPLES
    		STATE:			FL
    		ZIP:			34105
    		BUSINESS PHONE:		239-403-4600

    	MAIL ADDRESS:
    		STREET 1:		3520 KRAFT ROAD, SUITE 300
    		CITY:			NAPLES
    		STATE:			FL
    		ZIP:			34105

    	FORMER COMPANY:
    		FORMER CONFORMED NAME:	TRANSACTION SYSTEMS ARCHITECTS INC
    		DATE OF NAME CHANGE:	19950109
    </SEC-HEADER>
    <DOCUMENT>
    <TYPE>DEF 14A
    <SEQUENCE>1
    <FILENAME>d272903ddef14a.htm
    <DESCRIPTION>DEF 14A
    <TEXT>
    Document 1 - file: d272903ddef14a.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>2
    <FILENAME>g272903dsp003.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 2 - file: g272903dsp003.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>3
    <FILENAME>g272903dsp004.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 3 - file: g272903dsp004.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>4
    <FILENAME>g272903g03z11.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 4 - file: g272903g03z11.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>5
    <FILENAME>g272903g21z53.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 5 - file: g272903g21z53.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>6
    <FILENAME>g272903g23o40.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 6 - file: g272903g23o40.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>7
    <FILENAME>g272903g37d12.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 7 - file: g272903g37d12.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>8
    <FILENAME>g272903g41d41.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 8 - file: g272903g41d41.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>9
    <FILENAME>g272903g49a99.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 9 - file: g272903g49a99.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>10
    <FILENAME>g272903g67l02.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 10 - file: g272903g67l02.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>11
    <FILENAME>g272903g91f32.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 11 - file: g272903g91f32.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>12
    <FILENAME>g272903g92a10.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 12 - file: g272903g92a10.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>13
    <FILENAME>g272903page001.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 13 - file: g272903page001.jpg

    </DOCUMENT>
    </SEC-DOCUMENT>