Cook Island may refer to:
Cook Island, Kiritimati, Kiribati Cook Island (New South Wales), Australia Cook Island Aquatic Reserve, New South Wales Cook Island Nature Reserve, New South Wales Cook Island, South Sandwich Islands, Southern Thule "Cook Island" is the adjectival demonym for people and things from the Cook Islands Cook Island, Tierra del Fuego, Chile
See also Cook Islands, self-governing democracy in the Pacific in free association with New Zealand Cook (disambiguation)