| 12-pounder Whitworth rifle | |
|---|---|
 | |
| Type | field gun |
| Place of origin | United Kingdom |
| Service history | |
| Used by | United States |
| Wars | American Civil War |
| Production history | |
| Designer | Joseph Whitworth |
| Manufacturer | Joseph Whitworth |
| Specifications | |
| Mass | 896 lbs |
| Barrel length | 7ft 9in |
The 12-pounder Whitworth rifle was a medium caliber field gun deployed during the mid-19th century. Designed by Joseph Whitworth, the gun was most notably used during the American Civil War. The gun was also used by the Imperial Brazilian Army in the War of the Triple Alliance.