Boigu Island (also known as Malu Kiyay or Malu Kiwai ) 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 kilometres (3.7 mi) away from Boigu. Boigu has an area of 89.6 km². Boigu is also the name of the town and Boigu Island is tha name of the locality on the island within the Torres Strait Island Region.
It is the largest and only inhabited island of the Talbot Islands group of the Torres Strait Islands.