| Rouessé-Fontaine | |
| Commune Status: | Commune |
| Arrondissement: | Mamers |
| Canton: | Sillé-le-Guillaume |
| Insee: | 72254 |
| Postal Code: | 72610 |
| Mayor: | Patrick Palmas[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | Haute Sarthe Alpes Mancelles |
| Coordinates: | 48.3233°N 0.1517°W |
| Elevation Min M: | 82 |
| Elevation Max M: | 147 |
| Area Km2: | 12.48 |
| Demonym: | Rousséens |
Rouessé-Fontaine (in French pronounced as /ʁwɛse fɔ̃tɛn/) is a commune in the Sarthe department in the region of Pays de la Loire in north-western France.