General Santos International Airport (IATA: GES, ICAO: RPMR), also known as Tambler Airport, is an alternate international airport located in the city of General Santos, Philippines serving the greater area of Soccsksargen. Situated in Fatima, General Santos, it is a large airport on the island of Mindanao and is officially classified as an international airport by the Civil Aviation Authority of the Philippines (CAAP), a government bureau which is responsible for the management and operations of General Santos International Airport and all other airports in the country except regular international airports.

The airport was inaugurated on July 6, 1996, in time to serve the influx of visitors, athletes, and participants coming in from different parts of the Philippines who were taking part in the 42nd annual Palarong Pambansa (National Games) that was held in South Cotabato, Sarangani and General Santos area at that time. The new airport immediately replaced the old and smaller Buayan Airport in Barangay Buayan, which has been converted into an air station for the Philippine Air Force and renamed "Rajah Buayan Air Base". Though new, wider and much more modern, General Santos International Airport nevertheless retained its old IATA airport code (GES) from the old Buayan Airport.