| Fort Beauregard | |
|---|---|
  Location within Louisiana | |
| General information | |
| Town or city | Harrisonburg, Louisiana |
| Country | United States |
| Coordinates | 31°46′28″N 91°49′15″W / 31.77442°N 91.82074°W |
| Construction started | 1862 |
| Completed | 1862 |
| Technical details | |
| Structural system | Earthen |
Fort Beauregard, located half a mile north of the village of Harrisonburg, Catahoula Parish, Louisiana, was one of four Confederate forts guarding the Ouachita River during the American Civil War. In 1863, four Union gunboats attacked it, unsuccessfully.