Asau Airport (IATA: AAU, ICAO: NSAU) is a small domestic airfield located in the thick dense jungle at the northwest end of Savai'i in Samoa.

The airport is in the village of Asau and mainly services chartered flights.

[2] It was washed away by Cyclone Ofa in 1990, and the current airport was built to replace it in 1999.

Only Twin Otter and Britten-Norman Islander planes can land and take off this small airport, generally because the runway and tarmac cannot handle any other larger and heavier aircraft.

Asau was badly affected and the airport suffered serious damage.