| Gensac-de-Boulogne | |
| Commune Status: | Commune |
| Arrondissement: | Saint-Gaudens |
| Canton: | Saint-Gaudens |
| Insee: | 31218 |
| Postal Code: | 31350 |
| Mayor: | Daniel Sabathe[1] |
| Term: | 2020 - 2026 |
| Coordinates: | 43.2539°N 0.5875°W |
| Elevation M: | 400 |
| Elevation Min M: | 289 |
| Elevation Max M: | 438 |
| Area Km2: | 10.96 |
Gensac-de-Boulogne (pronounced as /fr/, literally Gensac of Boulogne; oc|Gençac de Bolonha) is a commune in the Haute-Garonne department in southwestern France.
The river Gesse forms part of the commune's eastern border; the Gimone forms part of its western border.