Watson Island may refer to:

Watson Island, an island in the city of Miami, United States Watson Island (Queensland), Australia Watson's Island, County Down, is a townland in County Down, Northern Ireland Watson Island (British Columbia), at the entrance to Mackenzie Sound on the north side of the Broughton Archipelago, on the Central Coast of British Columbia, Canada Watson Island (Port Edward), an unincorporated area in Port Edward, on the North Coast of British Columbia Watson Island (Algoma), in the Algoma District of Ontario, Canada Watson Island (Muskoka), in the Muskoka region of Ontario, Canada Watson Islands, Nunavut, Canada