Louisville International Airport (IATA: SDF, ICAO: KSDF) is a public airport centrally located in the city of Louisville in Jefferson County, Kentucky, USA. The airport covers 1,200 acres and has three runways. Its IATA airport code SDF is based on the airport's former name, Standiford Field.

The Kentucky Air National Guard's 123d Airlift Wing is headquartered at the airport. They operate C-130 transport aircraft.