The Kuugaarjuk Migratory Bird Sanctuary, formerly the McConnell River Migratory Bird Sanctuary, is located in the Kivalliq Region of Nunavut, Canada. The sanctuary is on Hudson Bay's west coast, south of Arviat, and north of the Manitoba border. Its prior name was derived from the McConnell River which flows to the Hudson Bay. The Bird Sanctuary is home to and an important breeding ground for cackling goose, lesser snow goose, Ross's goose, and Canada goose.
Established in 1960 under the Migratory Bird Sanctuary Regulations of the Migratory Birds Convention Act of 1917, the sanctuary is privately owned by the Inuit of Nunavut. It received Ramsar Convention designation May 24, 1982, making it Canada's 14th Ramsar site.