| Coulvain | |
| Arrondissement: | Vire |
| Canton: | Les Monts d'Aunay |
| Insee: | 14188 |
| Postal Code: | 14310 |
| Commune: | Seulline |
| Coordinates: | 49.0489°N -0.7253°W |
| Elevation M: | 238 |
| Elevation Min M: | 128 |
| Elevation Max M: | 222 |
| Area Km2: | 4.31 |
| Population: | 394 |
| Population Date: | 2019 |
| Population Footnotes: | [1] |
Coulvain (in French pronounced as /kulvɛ̃/) is a former commune in the Calvados department in the Normandy region in northwestern France. On 1 January 2016, it was merged into the new commune of Seulline.[2]