Mill Island is an uninhabited Arctic island located in Hudson Bay between Foxe Channel and Hudson Strait.

Mill Island is part of the Qikiqtaaluk Region of the Canadian territory of Nunavut.

Morrissey Harbour is a bay on the island's north coast.

Another small island, unnamed, is off the west coast of Mill Island, separated by Hurin Throughlet.

This Qikiqtaaluk Region, Nunavut location article is a stub.