| Cosmes | |
| Commune Status: | Commune |
| Image Coat Of Arms: | Blason ville fr Cosmes (Mayenne).svg |
| Arrondissement: | Château-Gontier |
| Canton: | Cossé-le-Vivien |
| Mayor: | Dominique Couëffé[1] |
| Term: | 2020 - 2026 |
| Coordinates: | 47.9208°N -0.8797°W |
| Elevation M: | 95 |
| Elevation Min M: | 58 |
| Elevation Max M: | 107 |
| Area Km2: | 13.68 |
| Insee: | 53075 |
| Postal Code: | 53230 |
Cosmes (pronounced as /fr/) is a commune in the Mayenne department in north-western France.