Sandefjord Airport, Torp (Norwegian: Sandefjord lufthavn, Torp; IATA: TRF, ICAO: ENTO) is a minor international airport located 4 nautical miles (7.4 km; 4.6 mi) northeast of Sandefjord and 110 kilometers (68 mi) south of Oslo in Norway. The airport features a 2,989-meter (9,806 ft) runway aligned 18/36. Torp partially serves as a regional airport for Vestfold and in part as a low-cost airport for Eastern Norway and the capital, Oslo. Widerøe have a base at Torp, serving both domestic and shorter International flights. It also sees scheduled flights by airBaltic, Ryanair, Wizz Air, and Norwegian Air Shuttle. As of 2021, it is the second-largest airport in eastern Norway in terms of flights after Rygge shut down in 2016.

The airport was built largely with NATO funding as one of several bases to be used by the United States Air Force in case of war. Construction started in 1953 and the airport was opened on 2 July 1956. By then the military interest in the airport had dwindled. Civilian flights commenced in 1958, and in 1960, a municipal airport company was established to run a civilian sector.