| Gensac-sur-Garonne | |
| Commune Status: | Commune |
| Arrondissement: | Muret |
| Canton: | Auterive |
| Insee: | 31219 |
| Postal Code: | 31310 |
| Mayor: | Christian Murcia[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | Volvestre |
| Coordinates: | 43.2183°N 1.1317°W |
| Elevation M: | 230 |
| Elevation Min M: | 215 |
| Elevation Max M: | 380 |
| Area Km2: | 10.14 |
Gensac-sur-Garonne (pronounced as /fr/, literally Gensac on Garonne; oc|Gençac de Garona) is a commune in the Haute-Garonne department in southwestern France.
The commune is bordered by five other communes: Saint-Julien-sur-Garonne across the river Garonne to the north, Rieux-Volvestre to the northeast, Goutevernisse to the east, Saint-Christaud to the south, and finally by Cazères across the river Garonne to the west.
The river Garonne flows through the commune, making the suffix -sur-Garonne, forming a border between Saint-Julien-sur-Garonne and Cazères.