| Marchaux-Chaudefontaine | |
| Commune Status: | Commune |
| Image Coat Of Arms: | Blason ville fr Marchaux-Chaudefontaine (Doubs).svg |
| Arrondissement: | Besançon |
| Canton: | Besançon-4 |
| Insee: | 25368 |
| Postal Code: | 25640 |
| Mayor: | Patrick Corne[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | Grand Besançon Métropole |
| Coordinates: | 47.3242°N 6.1336°W |
| Area Km2: | 16.39 |
Marchaux-Chaudefontaine (in French pronounced as /maʁʃo ʃodfɔ̃tɛn/) is a commune in the department of Doubs, eastern France. The municipality was established on 1 January 2018 by merger of the former communes of Marchaux (the seat) and Chaudefontaine.[2]