| La Roussière | |
| Arrondissement: | Bernay |
| Canton: | Bernay |
| Insee: | 27499 |
| Postal Code: | 27270 |
| Commune: | Mesnil-en-Ouche |
| Coordinates: | 48.9622°N 0.5808°W |
| Elevation M: | 172 |
| Elevation Min M: | 169 |
| Elevation Max M: | 204 |
| Area Km2: | 10.23 |
| Population: | 215 |
| Population Date: | 2019 |
| Population Footnotes: | [1] |
La Roussière (in French pronounced as /la ʁusjɛʁ/) is a former commune in the Eure department in northwestern France. On 1 January 2016, it was merged into the new commune of Mesnil-en-Ouche.[2]