Royal Air Force Halesworth or more simply RAF Halesworth is a former Royal Air Force station located 2 miles (3 km) north east of the town of Halesworth, Suffolk, England and 7 miles (11 km) west of Southwold.

Halesworth was built in 1942–1943 and was intended for use as a bomber station, and was built as such with a 6,000 ft. main runway and two secondary runways of 4,200 ft length. There was an encircling perimeter track with 51 hardstands and two T-2 hangars. Nissen hut accommodations for about 3,000 personnel were also built south of the airfield.

USAAF Station Units assigned to RAF Halesworth were:

Regular Army Station Units included:

The airfield was assigned USAAF designation Station 365 (HA).

The first unit to use Halesworth was the 56th Fighter Group which arrived from RAF Horsham St Faith on 9 July 1943. Its operational squadrons were:

Being only eight miles from the Suffolk coast, Halesworth was ideally located for escort fighter operations, where range was an important factor. For this reason the 56th Fighter Group was moved there. Flying Republic P-47 Thunderbolts, the group flew numerous missions over France, the Low Countries, and Germany to escort bombers attacking industrial establishments, V-weapon sites, submarine pens, and other targets on the Continent.

In addition the 56th strafed and dive-bombed airfields, troops, and supply points; attacked the enemy communications; and flew counter-air patrols.