Qaiqsuarjuk (Inuktitut syllabics: ᖃᐃᖅᓱᐊᕐᔪᒃ) formerly Wishart Island is an uninhabited island located in the Qikiqtaaluk Region, Nunavut, Canada. It is a Baffin Island offshore island in Hudson Strait, and a member of the Sheer Islands. The closest community is Kimmirut, 23.1 km (14.4 mi) away.

Other islands in the immediate vicinity include: Lavoie Island, Poodlatee Island, Black Bluff Island, Kaavvijjuaq, Qaqqannalik, Nuvuktiqpaaraaluk, Anguttuaq, Aulatsiviit, Ijjuriktuq, Ivvitsa, Takijualuk, Kinngarjuaq, and Ungirlauttat.