| Messimy | |
| Commune Status: | Commune |
| Image Coat Of Arms: | Blason ville fr Messimy (Rhône).svg |
| Arrondissement: | Lyon |
| Canton: | Brignais |
| Insee: | 69131 |
| Postal Code: | 69510 |
| Mayor: | Marie-Agnès Berger[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | CC des Vallons du Lyonnais |
| Coordinates: | 45.6989°N 4.6747°W |
| Elevation M: | 350 |
| Elevation Min M: | 257 |
| Elevation Max M: | 606 |
| Area Km2: | 11.1 |
| Demonym: | Messimois |
Messimy (in French pronounced as /mɛsimi/) is a commune in the Rhône department in eastern France.