<SEC-DOCUMENT>0001654954-20-003612-index.html : 20200331
<SEC-HEADER>0001654954-20-003612.hdr.sgml : 20200331
<ACCEPTANCE-DATETIME>20200331165431
ACCESSION NUMBER:		0001654954-20-003612
CONFORMED SUBMISSION TYPE:	6-K
PUBLIC DOCUMENT COUNT:		3
CONFORMED PERIOD OF REPORT:	20200331
FILED AS OF DATE:		20200331
DATE AS OF CHANGE:		20200331

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:		20762485

	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>form6-k.htm
<DESCRIPTION>FORM 6-K DATED MARCH 31, 2020
<TEXT>
Document 1 - file: form6-k.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.1
<SEQUENCE>2
<FILENAME>denisonminescorp_nmrd.htm
<DESCRIPTION>NOTICE OF MEETING AND RECORD DATE (AMENDED)
<TEXT>
Document 2 - file: denisonminescorp_nmrd.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.2
<SEQUENCE>3
<FILENAME>mcr-2020prospectusofferin.htm
<DESCRIPTION>MATERIAL CHANGE REPORT DATED MARCH 31, 2020
<TEXT>
Document 3 - file: mcr-2020prospectusofferin.htm

</DOCUMENT>
</SEC-DOCUMENT>