White Waltham Airfield (ICAO: EGLM) is an operational general aviation aerodrome located at White Waltham, 2 nautical miles (3.7 km; 2.3 mi) southwest of Maidenhead, in the Royal Borough of Windsor and Maidenhead in Berkshire, England.

This large grass airfield is best known for its association with the Air Transport Auxiliary from 1940 to 1945 and also has a significant history of prewar flying training, wartime and postwar RAF use and postwar use as a flight test centre by the Fairey and Westland aircraft companies. In the mid-1950s it was HQ of RAF Home Command. It is now privately owned and is the home of the West London Aero Club.