| Avensan | |
| Commune Status: | Commune |
| Arrondissement: | Lesparre-Médoc |
| Canton: | Le Sud-Médoc |
| Insee: | 33022 |
| Postal Code: | 33480 |
| Mayor: | Laurent Pascual[1] |
| Term: | 2023 - 2026 |
| Intercommunality: | CC Médullienne |
| Coordinates: | 45.0356°N -0.7567°W |
| Elevation M: | 14 |
| Elevation Min M: | 4 |
| Elevation Max M: | 51 |
| Area Km2: | 52.24 |
Avensan (pronounced as /fr/) is a commune in the Gironde department in southwestern France.