| Gençay | |
| Commune Status: | Commune |
| Image Coat Of Arms: | Blason ville fr Gençay (Vienne).svg |
| Arrondissement: | Montmorillon |
| Canton: | Lussac-les-Châteaux |
| Insee: | 86103 |
| Postal Code: | 86160 |
| Mayor: | François Bock[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | Civraisien en Poitou |
| Coordinates: | 46.3733°N 0.4058°W |
| Elevation M: | 125 |
| Elevation Min M: | 105 |
| Elevation Max M: | 138 |
| Area Km2: | 4.74 |
Gençay (in French pronounced as /ʒɑ̃sɛ/) is a commune in the Vienne department in the Nouvelle-Aquitaine region in western France. The inhabitants are called Gencéens.
The village lies on the left bank of the Clouère, which forms the commune's northern border.