Qallunaat Island is an uninhabited island in the Qaasuitsup municipality in northwestern Greenland. Qallunaat Island was briefly inhabited between 1898, when the Sarfaq settlement was founded, and 1919, when it was abandoned. Sarfaq was perched on the low-lying northern end of the island, at the shores of Kangerlussuaq Icefjord.
The island is hilly in its southern part, falling to the sea with red, silver, and light-colored cliffs. At 340 m (1,120 ft), Inngik is the highest mountain on the island, located in the western part of the island. The coastline of the island is developed, with many inlets indenting the coastline, particularly in its northern part.