French Frigate Shoals Airport (ICAO: PHHF, FAA LID: HFS) is a private use airport on Tern Island in French Frigate Shoals, a coral atoll, in Hawaii, United States. It is owned by the United States Fish and Wildlife Service, as part of the Hawaiian Islands National Wildlife Refuge. Although many U.S. airports use the same three-letter location identifier for the FAA and IATA, this airport is assigned HFS by the FAA but has no designation from the IATA (which assigned HFS to Hagfors Airport in Hagfors, Sweden).