| Vaillant | |
| Commune Status: | Commune |
| Arrondissement: | Langres |
| Canton: | Villegusien-le-Lac |
| Insee: | 52499 |
| Postal Code: | 52160 |
| Mayor: | Patrice Dumartin[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | Auberive Vingeanne et Montsaugeonnais |
| Coordinates: | 47.7108°N 5.1533°W |
| Elevation M: | 472 |
| Area Km2: | 7.5 |
| Demonym: | Vaillantais, Vaillantaises |
Vaillant (in French pronounced as /vajɑ̃/) is a commune in the Haute-Marne department in north-eastern France.
The village is located about 42 km north of Dijon on the Langres plateau, where the river Venelle, a tributary of the river Tille, has its source.