Yokota Air Base (横田飛行場, Yokota Hikōjō), (IATA: OKO, ICAO: RJTY) is a Japan Air Self-Defense Force (JASDF) and United States Air Force (USAF) base in the Tama Area, or Western Tokyo.

It occupies portions of Akishima, Fussa, Hamura, Mizuho, Musashimurayama, and Tachikawa.

The base houses 14,000 personnel. It occupies a total area of 7.07 km2 (2.73 sq mi) and has a 3,353 m × 61 m (11,001 ft × 200 ft) runway.

It features the JASDF Air Defense Command Headquarters (ADC headquarters) since 26 March 2012. The headquarters of United States Forces Japan is also located there. Other base facilities are the broadcast center for the American Forces Network Tokyo radio service and a detachment of Pacific Air Forces' Band of the Pacific.