Nolan Island is an ice-covered island 6 nautical miles (11 km) long, lying 2 nautical miles (3.7 km) north of Court Ridge in Sulzberger Ice Shelf, along the coast of Marie Byrd Land. Discovered and mapped by the United States Antarctic Service (USAS), 1939-41. Named by Advisory Committee on Antarctic Names (US-ACAN) for William G. Nolan, RD1, U.S.