Moon Island may refer to:

Comoros islands, an island state located in the Indian Ocean between Madagascar and Mozambique

Moon Island (Australia), an Australian island off Swansea Heads Moon Island (Hong Kong) Moon Island (Massachusetts), U.S. Tsukishima (Moon Island), Chūō, Tokyo, Japan Isla de la Luna (Moon Island), Lake Titicaca, La Paz, Bolivia A community in The Archipelago, Ontario, Canada An island in St. Mary's River, Michigan The German and Swedish name for Muhu island in the Gulf of Riga A resort and the site of the 2004 Sinai bombings

See also Half Moon Island, an Antarctic island in the South Shetland Islands Mohn Islands, in the Kara Sea, Siberia, Russia Mon Island, Region Zealand, Denmark