| Marchaux | |
| Coordinates: | 47.3242°N 6.1336°W |
| Insee: | 25368 |
| Postal Code: | 25640 |
| Arrondissement: | Besançon |
| Canton: | Besançon-4 |
| Commune: | Marchaux-Chaudefontaine |
| Elevation Min M: | 279 |
| Elevation Max M: | 530 |
| Area Km2: | 10.06 |
| Population: | 1235 |
| Population Date: | 2015 |
| Population Footnotes: | [1] |
Marchaux (in French pronounced as /maʁʃo/) is a former commune in the Doubs department in the Bourgogne-Franche-Comté region in eastern France. On 1 January 2018, it was merged into the new commune of Marchaux-Chaudefontaine.[2]
Marchaux lies 10km (10miles) from Besançon at the edge of the forest of Chailluz.
It is 2km (01miles) from the exit from the A36 freeway.