| Saint-Marc-le-Blanc | |
| Native Name: | (Gallo) |
| Commune Status: | Commune |
| Coordinates: | 48.3653°N -1.4083°W |
| Insee: | 35292 |
| Postal Code: | 35460 |
| Arrondissement: | Fougères-Vitré |
| Canton: | Val-Couesnon |
| Mayor: | Olivier Gaigne[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | Couesnon Marches de Bretagne |
| Elevation Min M: | 60 |
| Elevation Max M: | 121 |
| Area Km2: | 22.76 |
Saint-Marc-le-Blanc (in French pronounced as /sɛ̃ maʁ lə blɑ̃/; Gallo: Saent-Mard-le-Blaunc, Breton: Sant-Mezar-Elvinieg) is a commune in the Ille-et-Vilaine department in Brittany in northwestern France. On 1 January 2019, the former commune Baillé was merged into Saint-Marc-le-Blanc.[2]
Saint-Marc-le-Blanc is located 39km (24miles) northeast of Rennes and 33km (21miles) south of Mont Saint-Michel.
The adjacent communes are Saint-Brice-en-Coglès, Baillé, Le Tiercent, Chauvigné, and Tremblay.
Inhabitants of Saint-Marc-le-Blanc are called marcblaisiens in French.