| Saint-Léomer | |
| Commune Status: | Commune |
| Arrondissement: | Montmorillon |
| Canton: | Montmorillon |
| Insee: | 86230 |
| Postal Code: | 86290 |
| Mayor: | Jean-Pierre Tabuteau[1] |
| Term: | 2020 - 2026 |
| Coordinates: | 46.4372°N 0.9947°W |
| Elevation M: | 142 |
| Elevation Min M: | 112 |
| Elevation Max M: | 181 |
| Area Km2: | 28.67 |
Saint-Léomer is a commune in the Vienne department in the Nouvelle-Aquitaine region in western France.
The Salleron flows northward through the commune.