| Chaudefontaine | |
| Commune Status: | Commune |
| Arrondissement: | Châlons-en-Champagne |
| Canton: | Argonne Suippe et Vesle |
| Insee: | 51139 |
| Postal Code: | 51800 |
| Mayor: | Patrick Cappy[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | Argonne Champenoise |
| Coordinates: | 49.0997°N 4.8703°W |
| Elevation M: | 136 |
| Area Km2: | 12.98 |
Chaudefontaine (in French pronounced as /ʃodfɔ̃tɛn/) is a commune in the Marne department in north-eastern France.