| Locmaria-Berrien | |
| Native Name: | Lokmaria-Berrien |
| Coordinates: | 48.3544°N -3.6936°W |
| Insee: | 29129 |
| Postal Code: | 29690 |
| Arrondissement: | Châteaulin |
| Canton: | Carhaix-Plouguer |
| Commune: | Poullaouen |
| Elevation Min M: | 74 |
| Elevation Max M: | 210 |
| Area Km2: | 17.20 |
| Population: | 226 |
| Population Date: | 2019 |
| Population Footnotes: | [1] |
Locmaria-Berrien (in French pronounced as /lɔkmaʁja bɛʁjɛ̃/;) is a former commune in the Finistère department of Brittany in north-western France. On 1 January 2019, it was merged into the commune Poullaouen.[2]
Inhabitants of Locmaria-Berrien are called in French Locberrienois.