Akpatok Island is one of Canadian Arctic's uninhabited islands located in Qikiqtaaluk (Nunavut, Canada). The island covers a total area of approx 903 km2 (349 mi2).
Akpatok Island is the largest in Ungava Bay on Quebec's northern coast. It is named for Akpat, thick-billed murre (Uria lomvia), that live on the cliffs.
The island is predominantly limestone. It is ringed with steep cliffs rising 150-250 m (490-820 ft) above sea level. In many places, the cliffs are broken by deep ravines that allow access to the flat plateau 23 km (14 mi) wide and 45 km (28 mi) long.
Akpatok Island is designated an Important Bird Area and Key Migratory Bird Terrestrial Habitat site. In addition to thick-billed murre, other notable seabird species include peregrine falcon and black guillemot. Seals, walruses and polar bears are also present.
At the island's southern end there are remains of Dorset settlement. Akpatok Island is famous for its cannibalism - this practice ended around 1900 as the island's inhabitants moved to mainland Canada. Many human remains and skulls have been found.
An exploratory oil well was drilled in July 1971 on the island, yet all that remains are rusted equipment and several dilapidated shelters.