| Chaillac-sur-Vienne | |
| Commune Status: | Commune |
| Image Coat Of Arms: | Blason ville fr Chaillac-sur-Vienne (Haute-Vienne).svg |
| Coordinates: | 45.88°N 0.8733°W |
| Insee: | 87030 |
| Postal Code: | 87200 |
| Arrondissement: | Rochechouart |
| Canton: | Saint-Junien |
| Mayor: | Jean-Pierre Granet[1] |
| Term: | 2020 - 2026 |
| Elevation Min M: | 155 |
| Elevation Max M: | 292 |
| Area Km2: | 15.14 |
Chaillac-sur-Vienne (in French pronounced as /ʃajak syʁ vjɛn/, literally Chaillac on Vienne; Occitan (post 1500);: Chalhac) is a commune in the Haute-Vienne department in the Nouvelle-Aquitaine region in western France.
Inhabitants are known as Chaillacois.