| Montmançon | |
| Commune Status: | Commune |
| Image Coat Of Arms: | Blason de la ville de Montmançon (Côte-d'Or).svg |
| Arrondissement: | Dijon |
| Canton: | Auxonne |
| Insee: | 21437 |
| Postal Code: | 21270 |
| Mayor: | Patrick Ryser[1] |
| Term: | 2020 - 2026 |
| Coordinates: | 47.3533°N 5.3794°W |
| Elevation M: | 208 |
| Elevation Min M: | 188 |
| Elevation Max M: | 221 |
| Area Km2: | 8.99 |
Montmançon (in French pronounced as /mɔ̃mɑ̃sɔ̃/) is a commune in the Côte-d'Or department in eastern France.