| Lamazère | |
| Commune Status: | Commune |
| Arrondissement: | Mirande |
| Canton: | Mirande-Astarac |
| Insee: | 32187 |
| Postal Code: | 32300 |
| Mayor: | Jean-Marc Desbarats[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | Cœur d'Astarac en Gascogne |
| Coordinates: | 43.5581°N 0.4533°W |
| Elevation M: | 200 |
| Elevation Min M: | 141 |
| Elevation Max M: | 243 |
| Area Km2: | 7.47 |
Lamazère (in French pronounced as /lamazɛʁ/; Occitan (post 1500);: La Masera) is a commune in the Gers department in southwestern France.
The Petite Baïse forms part of the commune's southern border, flows northwest through the middle of the commune, then forms part of its northwestern border.