Olympia Regional Airport (IATA: OLM, ICAO: KOLM, FAA LID: OLM) is a public use airport located four nautical miles (7 km) south of the central business district of Olympia, a city in Thurston County and the capital of the U.S. state of Washington. It is owned by the Port of Olympia. It is about one mile (1.6 km) east of Interstate 5, actually within the boundaries of the city of Tumwater which is south of and adjacent to Olympia.