    <SEC-DOCUMENT>0000912282-17-000164-index.html : 20170728
    <SEC-HEADER>0000912282-17-000164.hdr.sgml : 20170728
    <ACCEPTANCE-DATETIME>20170727205057
    ACCESSION NUMBER:		0000912282-17-000164
    CONFORMED SUBMISSION TYPE:	6-K
    PUBLIC DOCUMENT COUNT:		8
    CONFORMED PERIOD OF REPORT:	20170721
    FILED AS OF DATE:		20170728
    DATE AS OF CHANGE:		20170727

    FILER:

    	COMPANY DATA:
    		COMPANY CONFORMED NAME:			NexGen Energy Ltd.
    		CENTRAL INDEX KEY:			0001698535
    		STANDARD INDUSTRIAL CLASSIFICATION:	MISCELLANEOUS METAL ORES [1090]
    		IRS NUMBER:				840123707
    		STATE OF INCORPORATION:			A1
    		FISCAL YEAR END:			1231

    	FILING VALUES:
    		FORM TYPE:		6-K
    		SEC ACT:		1934 Act
    		SEC FILE NUMBER:	001-38072
    		FILM NUMBER:		17987592

    	BUSINESS ADDRESS:
    		STREET 1:		1021 WEST HASTINGS STREET
    		CITY:			VANCOUVER
    		STATE:			A1
    		ZIP:			V6E 0C3
    		BUSINESS PHONE:		(604) 428-4112

    	MAIL ADDRESS:
    		STREET 1:		1021 WEST HASTINGS STREET
    		CITY:			VANCOUVER
    		STATE:			A1
    		ZIP:			V6E 0C3
    </SEC-HEADER>
    <DOCUMENT>
    <TYPE>6-K
    <SEQUENCE>1
    <FILENAME>nexgen6k_072417.htm
    <TEXT>
    Document 1 - file: nexgen6k_072417.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-99.1
    <SEQUENCE>2
    <FILENAME>ex99_1.htm
    <DESCRIPTION>INVESTOR RIGHTS AGREEMENT
    <TEXT>
    Document 2 - file: ex99_1.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-99.2
    <SEQUENCE>3
    <FILENAME>ex99_2.htm
    <DESCRIPTION>2017 INDENTURE
    <TEXT>
    Document 3 - file: ex99_2.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-99.3
    <SEQUENCE>4
    <FILENAME>ex99_3.htm
    <DESCRIPTION>2016 AMENDED AND RESTATED INDENTURE
    <TEXT>
    Document 4 - file: ex99_3.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>5
    <FILENAME>image00002.jpg
    <TEXT>
    Document 5 - file: image00002.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>6
    <FILENAME>image00003.jpg
    <TEXT>
    Document 6 - file: image00003.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>7
    <FILENAME>image00004.jpg
    <TEXT>
    Document 7 - file: image00004.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>8
    <FILENAME>image00006.jpg
    <TEXT>
    Document 8 - file: image00006.jpg

    </DOCUMENT>
    </SEC-DOCUMENT>