Walton Island is an uninhabited island in Qikiqtaaluk Region, Nunavut, Canada. Located in Hudson Bay, it is a member of the Belcher Islands group. It lies in Omarolluk Sound, west of Innetalling Island. The Camp Islands are to its south. Other islands in the immediate vicinity include:

• Fair Island
• Johnnys Island
• La Duke Island
• Mavor Island