| Masseilles | |
| Commune Status: | Commune |
| Arrondissement: | Langon |
| Canton: | Le Sud-Gironde |
| Insee: | 33276 |
| Postal Code: | 33690 |
| Mayor: | Nicole Vigne[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | Bazadais |
| Coordinates: | 44.4075°N -0.0536°W |
| Elevation M: | 139 |
| Elevation Min M: | 60 |
| Elevation Max M: | 152 |
| Area Km2: | 6.72 |
Masseilles (in French pronounced as /masɛj/; Occitan (post 1500);: Macelhas) is a commune in the Gironde department in Nouvelle-Aquitaine in southwestern France.