| Le Genest-Saint-Isle | |
| Commune Status: | Commune |
| Image Coat Of Arms: | Blason Genest-Saint-Isle.svg |
| Arrondissement: | Laval |
| Canton: | Loiron-Ruillé |
| Intercommunality: | Laval Agglomération |
| Mayor: | Nicole Bouillon[1] |
| Term: | 2020 - 2026 |
| Coordinates: | 48.0992°N -0.8878°W |
| Elevation M: | 92 |
| Elevation Min M: | 82 |
| Elevation Max M: | 166 |
| Area Km2: | 18.59 |
| Insee: | 53103 |
| Postal Code: | 53940 |
Le Genest-Saint-Isle (in French pronounced as /lə ʒənɛ sɛ̃.t‿il/) is a commune in the Mayenne department in north-western France.