| Saint-Médard-sur-Ille | |
| Native Name: | (Gallo) |
| Commune Status: | Commune |
| Image Coat Of Arms: | Blason ville fr Saint-Médard-sur-Ille 35.svg |
| Coordinates: | 48.2736°N -1.6583°W |
| Insee: | 35296 |
| Postal Code: | 35250 |
| Arrondissement: | Rennes |
| Canton: | Melesse |
| Mayor: | Noël Bournonville[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | Val d'Ille-Aubigné |
| Elevation Min M: | 44 |
| Elevation Max M: | 115 |
| Area Km2: | 18.22 |
Saint-Médard-sur-Ille (pronounced as /fr/, literally Saint-Médard on Ille; Gallo: Saent-Médart,) is a commune in the Ille-et-Vilaine department in Brittany in northwestern France.
Inhabitants of Saint-Médard-sur-Ille are called médardais in French.