Iluileq (named 'Ilivilik' in old maps) is an uninhabited island in the Kujalleq municipality in southern Greenland.

Wilhelm August Graah (1793–1863) met groups of Southeast-Greenland Inuit on the island during his 1828–30 expedition.

[2] The crew drifted on the sea ice southward and after nearly eleven months finally reached Iluileq by boat.

From there they followed the shore southwards until they reached the Moravian Herrnhut mission at Friedrichsthal (modern Narsaq Kujalleq) near Cape Farewell, from where they got back to Germany on a Danish ship.

[3] Iluileq is a coastal island that lies off King Frederick VI Coast in southeastern Greenland.