| Saint-Maugan | |
| Native Name: | (Gallo) |
| Commune Status: | Commune |
| Image Coat Of Arms: | Blason ville fr Saint-Maugan (Ille-et-Vilaine).svg |
| Coordinates: | 48.1358°N -2.0822°W |
| Insee: | 35295 |
| Postal Code: | 35750 |
| Arrondissement: | Rennes |
| Canton: | Montauban-de-Bretagne |
| Mayor: | Etienne Bonnin[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | Saint-Méen Montauban |
| Elevation Min M: | 42 |
| Elevation Max M: | 98 |
| Area Km2: | 8.43 |
Saint-Maugan (pronounced as /fr/; br|Sant-Malgant; Gallo: Saent-Maugant) is a commune in the Ille-et-Vilaine department in Brittany in northwestern France.
The commune is traversed by the Meu river.
Inhabitants of Saint-Maugan are called malganais in French.