| Saint-Symphorien-de-Marmagne | |
| Commune Status: | Commune |
| Insee: | 71482 |
| Postal Code: | 71710 |
| Arrondissement: | Autun |
| Canton: | Autun-2 |
| Intercommunality: | CU Creusot Montceau |
| Coordinates: | 46.8408°N 4.3311°W |
| Elevation M: | 306 |
| Elevation Min M: | 286 |
| Elevation Max M: | 635 |
| Area Km2: | 37.31 |
Saint-Symphorien-de-Marmagne (in French pronounced as /sɛ̃ sɛ̃fɔʁjɛ̃ də maʁmaɲ/, literally Saint-Symphorien of Marmagne) is a commune in the Saône-et-Loire department in the region of Bourgogne-Franche-Comté in eastern France.