| Mérignas | |
| Commune Status: | Commune |
| Arrondissement: | Langon |
| Canton: | Le Réolais et Les Bastides |
| Insee: | 33282 |
| Postal Code: | 33350 |
| Mayor: | Gilles Cira[1] |
| Term: | 2020 - 2026 |
| Coordinates: | 44.7853°N -0.0864°W |
| Elevation M: | 80 |
| Elevation Min M: | 9 |
| Elevation Max M: | 96 |
| Area Km2: | 9.56 |
Mérignas is a commune in the Gironde department in Nouvelle-Aquitaine in southwestern France.