Alderney Airport (IATA: ACI, ICAO: EGJA) is the only airport on the island of Alderney, Guernsey. Built in 1935, Alderney Airport was the first airport in the Channel Islands. Located on the Blaye (1 NM (1.9 km; 1.2 mi) southwest of St Anne), it is the closest Channel Island airport to the south coast of England and the coast of France. Its facilities include a hangar, the Airport Fire Station, and avgas refuelling.

Alderney Airport is the base and on-record hub of Air Alderney, an airline that, as of 2022, has had problems commencing flights since 2017.