| Celsoy | |
| Commune Status: | Commune |
| Arrondissement: | Langres |
| Canton: | Chalindrey |
| Insee: | 52090 |
| Postal Code: | 52600 |
| Mayor: | Denis Billant[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | Savoir-Faire |
| Coordinates: | 47.8617°N 5.4792°W |
| Elevation M: | 330 |
| Elevation Min M: | 309 |
| Elevation Max M: | 428 |
| Area Km2: | 5.42 |
| Demonym: | Chachots, Chachottes |
Celsoy (in French pronounced as /sɛlswa/) is a commune in the Haute-Marne department in north-eastern France.