Cook Islands have competed in two editions of the Rugby League World Cup. They were eliminated at the group stage on both occasions.

Rugby League World Cup record
Year	Result	Position	Pld	W	D	L	PF	PA
1954	Did not participate
1957
1960
1968
1970
1972
1975
1977
1985–88
1989–92
1995	Did not qualify
2000	Group stage	13th	3	0	1	2	38	144
2008	Did not qualify
2013	Group stage	9th	3	1	0	2	64	78
2017	Did not qualify
2021	qualified
Total	–	–	6	1	1	4	102	222

Team	Played	Won	Drawn	Lost	For	Against	Diff	Points
New Zealand	3	3	0	0	206	28	+178	6
Wales	3	2	0	1	80	86	−6	4
Lebanon	3	0	1	2	44	110	−66	1
Cook Islands	3	0	1	2	38	144	−106	1

Round	Score	Opposition	Venue
Group Stage	6–38	Wales	Racecourse Ground, Wrexham
	10–84	New Zealand	Madejski Stadium, Reading
	22–22	Lebanon	Millennium Stadium, Cardiff

Team v t e	Pld	W	D	L	TF	PF	PA	+/−	Pts
United States	3	2	0	1	13	64	58	+6	4
Cook Islands	3	1	0	2	12	64	78	–14	2
Wales	3	0	0	3	11	56	84	–28	0

Round	Score	Opposition	Venue
Group Stage	20–32	United States	Memorial Stadium, Bristol
	16–22	Tonga	Leigh Sports Village, Leigh
	28–24	Wales	The Gnoll, Neath

Pos	Team v t e	Pld	W	D	L	PF	PA	PD	Pts	Qualification
1	Tonga	3	3	0	0	148	34	+114	6	Advance to knockout stage
2	Papua New Guinea	3	2	0	1	86	40	+46	4
3	Cook Islands	3	1	0	2	44	136	−92	2
4	Wales	3	0	0	3	18	86	−68	0

Round	Score	Opposition	Venue
Group Stage	–	Wales	England
	–	Papua New Guinea	England
	–	Tonga	England