Potomac Airfield (ICAO: KVKX, FAA LID: VKX), also known as Potomac Airport (), a privately owned, public-use airport located in the Friendly census-designated place in unincorporated Prince George's County, Maryland, United States (just outside Washington, D.C.); it has a Fort Washington postal address. It is a general aviation airport, and there is no scheduled airline service available.

Potomac Airfield is located within the Washington, D.C. Flight Restricted Zone (FRZ).