Crab Island may refer to:
United States: Crab Island (Florida), a shoal near Destin, Florida Crab Island (Lake Champlain), New York Crab Island (Washington), one of the San Juan Islands Crab Island (West Virginia), on the Ohio River A former British name for Vieques, Puerto Rico
Elsewhere: Crab Island (Queensland), Australia, in the western Torres Strait Crab Island, Guyana, at the mouth of the Berbice River Crab Island, Malaysia (Pulau Ketam) Crab Island, Cumbria, England, known as Dova Haw
See also Crab Cay, Colombia, in the Caribbean Sea Crab Key, a fictional Caribbean island in the James Bond novel Dr. No and the film adaptation