Black Bluff Island is an uninhabited island located in the Qikiqtaaluk Region, Nunavut, Canada. It is a Baffin Island offshore island in Hudson Strait. The closest community is Kimmirut, 17 km (11 mi) away.

Other islands in the immediate vicinity include: Lavoie Island, Wishart Island, Nuvursirpaaraaluk Island, Lee Island, Forder Island, Poodlatee Island, Beacon Island, Aulassivik Island, Ijjurittiak Island, Ivisaat Island, Glasgow Island, Juet Island, and Uugalautiit Island.