| Rennes-en-Grenouilles | |
| Commune Status: | Commune |
| Arrondissement: | Mayenne |
| Canton: | Lassay-les-Châteaux |
| Mayor: | Hervé Gérard Sylvain Pillaert[1] |
| Term: | 2021 - 2026 |
| Coordinates: | 48.4933°N -0.5108°W |
| Elevation M: | 30 |
| Elevation Min M: | 110 |
| Elevation Max M: | 210 |
| Area Km2: | 7.86 |
| Insee: | 53189 |
| Postal Code: | 53110 |
Rennes-en-Grenouilles (pronounced as /fr/) is a commune in the Mayenne department in north-western France.