Baffin Island () is an island in the territory of Nunavut. It is the largest member of the Canadian Arctic Archipelago. It is the largest island in Canada and the fifth largest island in the world, with an area of 507,451 km² (195,928 sq mi). It has a population of 11,000 people as of the year 2007. It is named after the British explorer William Baffin. The island was known to the Norse as Helluland.