This is a list of islands of Puerto Rico.
The Commonwealth of Puerto Rico has over 143 islands, cays, islets, and atolls. Only the main island of Puerto Rico (8,709 km2 [3,363 sq mi]) and the islands of Vieques (133 km2 [51 sq mi]), and Culebra (27 km2 [10 sq mi]) are inhabited. Mona Island (56 km2 [22 sq mi]) has personnel from the Puerto Rico Department of Natural and Environmental Resources (DNER) stationed year-around but no private citizens inhabit it (other than overnight camping guests and nature enthusiasts). Caja de Muertos Island (1.5 km2 [0.58 sq mi]) is also a DNER Nature Reserve, while Desecheo Island (1.5 km2 [0.58 sq mi]) is a National Wildlife Refuge administrated by the US Fish and Wildlife Service.
The other 140 islands, cays, islets and atolls are not inhabited. Three of the islands are in private hands: Palomino Island, which is rented on a long-term lease to El Conquistador Hotel, and Isla de Ramos and Isla de Lobos.