Apparsuit Island is an uninhabited island in the Qaasuitsup municipality in northwestern Greenland. The island is characteristic for its cliffs falling to the sea from all sides, providing shelter and a breeding ground for thousands of seabirds.
Together with the cliffs of Qaarsorsuaq Island in the southern part of the archipelago, the number of birds reached millions. The cliffs were harvested for eggs starting from 1875, when the northbound migrations of Greenlanders from Upernavik reached the islands north of Tasiusaq. The eggs are occasionally harvested to this day.