Royal Air Force Macmerry or more simply RAF Macmerry is a former Royal Air Force satellite station located 4.5 miles (7.2 km) west of Haddington, East Lothian, Scotland and 11.4 miles (18.3 km) east of Edinburgh.

Subsequently, an adjacent site was developed as Macmerry airfield by the Edinburgh Flying Club, and this was used for scheduled flights by North Eastern Airways from 1936 to 1939.

From March 1941 until July 1943 a succession of RAF Army Cooperation Command squadrons were stationed at Macmerry using Blenheim, Lysander and Mustang aircraft.

Naval use increased in December 1943 when 740 Naval Air Squadron formed at Macmerry, this being a communications squadron which used a variety of aircraft including the de Havilland Dominie, Avro Anson, Fairey Swordfish and Stinson Reliant.

However, the end of the war curtailed the need for naval aircrews and RNAS Macmerry was handed back to the RAF in December 1945.