Moore Island is an uninhabited island in Qikiqtaaluk Region, Nunavut, Canada. It is a member of the Hopewell Islands group in Hudson Bay. It lies in Hopewell Sound, about 28 km (17 mi) northwest of Inukjuak, Quebec, between McCormack Island and Hopkins Island. It measures about 4 km (2.5 mi) along its longest axis.