| Saint-Cyr | |
| Arrondissement: | Poitiers |
| Canton: | Jaunay-Clan |
| Commune: | Beaumont Saint-Cyr |
| Insee: | 86219 |
| Postal Code: | 86130 |
| Coordinates: | 46.7172°N 0.4544°W |
| Elevation M: | 150 |
| Elevation Min M: | 56 |
| Elevation Max M: | 144 |
| Area Km2: | 15.03 |
| Population: | 1122 |
| Population Date: | 2019 |
| Population Footnotes: | [1] |
Saint-Cyr (in French pronounced as /sɛ̃ siʁ/) is a former commune in the Vienne department in the Nouvelle-Aquitaine region in western France. On 1 January 2017, it was merged into the new commune Beaumont Saint-Cyr.[2]