| Le Châtelet-sur-Meuse | |
| Commune Status: | Commune |
| Arrondissement: | Langres |
| Canton: | Bourbonne-les-Bains |
| Insee: | 52400 |
| Postal Code: | 52400 |
| Mayor: | Dominique Daval[1] |
| Term: | 2020 - 2026 |
| Coordinates: | 47.9811°N 5.6297°W |
| Elevation M: | 409 |
| Area Km2: | 21.31 |
Le Châtelet-sur-Meuse (in French pronounced as /lə ʃatlɛ syʁ møz/, literally Le Châtelet on Meuse) is a commune in the Haute-Marne department in north-eastern France.
It contains the source of the River Meuse, which is very close the commune's village of Pouilly-en-Bassigny.