<SEC-DOCUMENT>0001654954-21-003066-index.html : 20210322
<SEC-HEADER>0001654954-21-003066.hdr.sgml : 20210322
<ACCEPTANCE-DATETIME>20210322163859
ACCESSION NUMBER:		0001654954-21-003066
CONFORMED SUBMISSION TYPE:	6-K
PUBLIC DOCUMENT COUNT:		5
CONFORMED PERIOD OF REPORT:	20210322
FILED AS OF DATE:		20210322
DATE AS OF CHANGE:		20210322

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			DENISON MINES CORP.
		CENTRAL INDEX KEY:			0001063259
		STANDARD INDUSTRIAL CLASSIFICATION:	MISCELLANEOUS METAL ORES [1090]
		IRS NUMBER:				000000000
		STATE OF INCORPORATION:			A6
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		6-K
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-33414
		FILM NUMBER:		21761780

	BUSINESS ADDRESS:	
		STREET 1:		40 UNIVERSITY AVE., SUITE 1100
		CITY:			TORONTO
		STATE:			A6
		ZIP:			M5J 1T1
		BUSINESS PHONE:		(416) 979-1991

	MAIL ADDRESS:	
		STREET 1:		40 UNIVERSITY AVE., SUITE 1100
		CITY:			TORONTO
		STATE:			A6
		ZIP:			M5J 1T1

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	INTERNATIONAL URANIUM CORP
		DATE OF NAME CHANGE:	19980603
</SEC-HEADER>
<DOCUMENT>
<TYPE>6-K
<SEQUENCE>1
<FILENAME>form6k.htm
<DESCRIPTION>FORM 6-K DATED MARCH 22, 2021
<TEXT>
Document 1 - file: form6k.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.1
<SEQUENCE>2
<FILENAME>dml-press_releasereuraniu.htm
<DESCRIPTION>PRESS RELEASE DATED MARCH 15, 2021
<TEXT>
Document 2 - file: dml-press_releasereuraniu.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.2
<SEQUENCE>3
<FILENAME>mcrmar2021.htm
<DESCRIPTION>MATERIAL CHANGE REPORT DATED MARCH 17, 2021
<TEXT>
Document 3 - file: mcrmar2021.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.3
<SEQUENCE>4
<FILENAME>dmc-prmarch222021announce.htm
<DESCRIPTION>PRESS RELEASE DATED MARCH 22, 2021
<TEXT>
Document 4 - file: dmc-prmarch222021announce.htm

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

</DOCUMENT>
</SEC-DOCUMENT>