| Fontenai-sur-Orne | |
| Arrondissement: | Argentan |
| Canton: | Argentan-1 |
| Commune: | Écouché-les-Vallées |
| Insee: | 61173 |
| Postal Code: | 61200 |
| Coordinates: | 48.7236°N -0.0697°W |
| Elevation Min M: | 147 |
| Elevation Max M: | 193 |
| Area Km2: | 6.51 |
| Population: | 241 |
| Population Date: | 2019 |
| Population Footnotes: | [1] |
| Demonym: | Fontenois |
Fontenai-sur-Orne (in French pronounced as /fɔ̃tnɛ syʁ ɔʁn/, literally Fontenai on Orne) is a former commune in the Orne department in north-western France. On 1 January 2018, it was merged into the commune of Écouché-les-Vallées.[2]