Boigu Island is the most northerly inhabited island of Queensland and of Australia. It is part of the top-western group of the Torres Strait Islands, which lie in the Torres Strait separating Cape York Peninsula from the island of New Guinea. The mainland of Papua New Guinea is only 6 km away from Boigu. Boigu has an area of 89.6 km².
It is the largest and only inhabited island of the three Talbot Islands.