Ikermiorsuaq Island (old spelling: Ikermiorssuaq) is an uninhabited island in Avannaata municipality in northwestern Greenland.
Ikermiorsuaq Island is located in the northern part of Upernavik Archipelago, in the center of Sugar Loaf Bay, an indentation of Baffin Bay, halfway between a chain of small islands off the southern coast of Nuussuaq Peninsula in the northwest, and Nasaussaq Island in the southeast, at the mouth of Nasaussap Saqqaa fjord.