Cape Sarichef Airport (IATA: WSF, ICAO: PACS, FAA LID: 26AK) was a small landing strip located on the western end of Unimak Island in the Aleutian Islands of the U.S. state of Alaska. It was used to supply and support a United States Coast Guard LORAN station and U.S. Air Force DEW Line site during the Cold War.

It is now a private-use facility owned by the U.S. Fish & Wildlife Service and managed by the Izembek National Wildlife Refuge.

Cape Sarichef was named in 1816 by Russian explorer Otto von Kotzebue after Admiral Gavril Sarychev of the Imperial Russian Navy.