| Marcilly-sur-Vienne | |
| Commune Status: | Commune |
| Arrondissement: | Chinon |
| Canton: | Sainte-Maure-de-Touraine |
| Mayor: | Thierry Brunet[1] |
| Term: | 2020 - 2026 |
| Coordinates: | 47.045°N 0.5408°W |
| Elevation Min M: | 32 |
| Elevation Max M: | 121 |
| Area Km2: | 10.99 |
| Insee: | 37147 |
| Postal Code: | 37800 |
Marcilly-sur-Vienne (in French pronounced as /maʁsiji syʁ vjɛn/, literally Marcilly on Vienne) is a commune in the Indre-et-Loire department in central France.