The 337th Test and Evaluation Squadron is a squadron of the United States Air Force. It is a part of the 53d Test and Evaluation Group of the 53d Wing. The 337th is stationed at Dyess Air Force Base, Texas, though it operates out of a number of bases throughout the United States.
The squadron was first activated during World War II as the 337th Bombardment Squadron. It served in the European Theater of Operations, where it participated in the strategic bombing campaign against Germany and earned two Distinguished Unit Citations for its combat actions. Following V-E Day, the squadron returned to the United States and was inactivated.
This squadron was again active from 1947 to 1949 in the reserves, although it was apparently never fully manned or equipped. It was active as a Boeing B-47 Stratojet squadron in Strategic Air Command from 1953 to 1963. It later flew the Boeing B-52 Stratofortress and the Lancer before transferring its assets to another squadron in 1994.