627 Squadron was a Royal Air Force Mosquito aircraft pathfinder bomber squadron that operated during the Second World War.

[5] It was equipped with the de Havilland Mosquito twin-engined fighter-bomber it flew operations as part of No.

[6] As well as normal bombing missions it also carried out Pathfinder duties and was involved in attacks on Berlin in early 1944.

5 Group as a specialised target marking squadron, although it also carried out armed reconnaissance and normal bombing duties.

[6] It was disbanded on 1 October 1945 at RAF Woodhall Spa when it was re-numbered 109 Squadron.