| Le Montsaugeonnais | |
| Commune Status: | Commune |
| Arrondissement: | Langres |
| Canton: | Villegusien-le-Lac |
| Insee: | 52405 |
| Postal Code: | 52190 |
| Mayor: | Olivier Oliveira-Cruz[1] |
| Term: | 2020 - 2026 |
| Coordinates: | 47.68°N 5.293°W |
| Area Km2: | 33.33 |
Le Montsaugeonnais (in French pronounced as /lə mɔ̃soʒɔnɛ/) is a commune in the Haute-Marne department of northeastern France. The municipality was established on 1 January 2016 and consists of the former communes of Montsaugeon, Prauthoy and Vaux-sous-Aubigny.[2]