| Berthez | |
| Commune Status: | Commune |
| Arrondissement: | Langon |
| Canton: | Le Réolais et Les Bastides |
| Insee: | 33048 |
| Postal Code: | 33124 |
| Mayor: | Guy Dubouilh[1] |
| Term: | 2020 - 2026 |
| Coordinates: | 44.4858°N -0.1342°W |
| Elevation M: | 107 |
| Elevation Min M: | 29 |
| Elevation Max M: | 115 |
| Area Km2: | 6.03 |
Berthez is a commune in the Gironde department in Nouvelle-Aquitaine in southwestern France.