Twin Cairns Island is an uninhabited island in Qikiqtaaluk Region, Nunavut, Canada. Located in Hudson Bay, it is a member of the Bakers Dozen Islands archipelago of the Belcher Islands group. Other islands in the immediate vicinity include:

• Bradbury Island
• Dove Island
• Flaherty Island
• Nero Island
• Ney Island
• Tukarak Island
• Walton Island