| 1st Proving Ground Group | |
|---|---|
 Stearman XA-21, one of the planes tested by the group | |
| Active | 1939-1944 |
| Country |  United States |
| Branch | United States Army Air Forces |
| Role | Test and Development |
| Insignia | |
| 1st Proving Ground Group emblem |  |
The 1st Proving Ground Group is a disbanded United States Army Air Forces unit. It was last active with the Army Air Forces Proving Ground Command, based at Eglin Field, Florida, where it was disbanded on 1 April 1944. The unit's personnel/equipment/mission was taken over by the 610th Army Air Forces Base Unit (AAF Base Unit) and 611th AAF Base Unit.
The group was originally established as the 23d Composite Group and was part of the Air Corps Tactical School with a mission that focused on developing and demonstrating tactics and doctrine. After moving to Eglin it also conducted testing of experimental weapons.