Île Vanier is one of the Queen Elizabeth Islands of the Canadian arctic islands in Nunavut, Canada. Located at 76° 10′ N 103° 15′ W, it has an area of 1,126 km (435 sq mi). It has length of 53 kilometres (33 mi) and width of 35 kilometres (22 mi). To the north, across the Arnott Strait, is Cameron Island, and to the south, across the Pearse Strait, is Massey Island. Île Vanier is uninhabited.

The first known sighting of the island was by Robert Dawes Aldrich in 1851, but its insular nature was not proven until the 1950s.

Adam Range reaches elevations in excess of 220 meters.