Sherman Army Airfield (IATA: FLV, ICAO: KFLV) is a joint use civilian-military airport located at Fort Leavenworth, Kansas, in Leavenworth County, Kansas. The airport is located on the United States Army post, but the city of Leavenworth, Kansas, has an agreement providing for civilian use at all times without prior notice or permission. Civilian use of the airfield far exceeds military use 93% to 7% as of the end of 2019.

It derives its codes from Fort Leavenworth. While many facilities at Fort Leavenworth are named for the Command and General Staff College founder William Tecumseh Sherman the airfield is actually named for an early Army Aviation pioneer, Major William Carrington Sherman (1888–1927), who died in 1927 at Ft. Leavenworth while there as an instructor. William Sherman wrote the Army's first airplane tactics manual, Air Tactics (1921), as well as several other army airplane manuals and histories.