Royal Air Force Station Membury or more simply RAF Membury is a former Royal Air Force station built in the civil parish of Lambourn in Berkshire, England. The airfield is located approximately 4.6 miles (7.4 km) mi north-northwest of Hungerford, at the Membury services stop of the M4 motorway; about 60 miles (97 km) miles west-southwest of London.