Belgrade Nikola Tesla Airport (Serbian: Аеродром Никола Тесла Београд / Aerodrom Nikola Tesla Beograd) or Belgrade Airport (Serbian: Аеродром Београд / Aerodrom Beograd) (IATA: BEG, ICAO: LYBE) is an international airport serving Belgrade, Serbia. It is the largest and the busiest airport in Serbia, situated 18 km (11 mi) west of downtown Belgrade near the suburb of Surčin, surrounded by fertile lowlands. It is operated by French conglomerate Vinci Airports and it is named after Serbian-American inventor Nikola Tesla (1856–1943).

The flag carrier and the largest airline of Serbia, Air Serbia, uses Belgrade Nikola Tesla as their hub. It is also one of the many operating bases for low-cost airline Wizz Air. The air taxi services Air Pink, Eagle Express and Prince Aviation also call the airport their home.