Any of several islands with the name

Hemizonia clementina, a species of tarweed.

An island in Saint Vincent and the Grenadines.

The second largest island in the British Isles: Northern Ireland and the Republic of Ireland collectively.

An island in the East River between Queens and the Bronx, New York that is home to New York City's main jail complex. / (by extension) The jail complex on the island.

An island in Budjak, on the Black Sea, at the Danue Delta, Danube River in Odessa Oblast, Ukraine, on the border with Romania

plural of island silicate

An island in 'Otu Mu'omu'a, Tonga, Polynesia, Oceania, Pacific Ocean

An island in Narragansett Bay, Rhode Island, United States, comprising part of the town of Portsmouth.

An island in Lunenburg County, Nova Scotia, Canada in Mahone Bay, Atlantic Ocean, known for rumours of buried pirate treasure, and a booby trapped pit.