| Fontaines-Saint-Clair | |
| Commune Status: | Commune |
| Arrondissement: | Verdun |
| Canton: | Stenay |
| Insee: | 55192 |
| Postal Code: | 55110 |
| Mayor: | Jean Broyart[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | CC du Pays de Stenay et du Val Dunois |
| Coordinates: | 49.3697°N 5.2364°W |
| Elevation M: | 216 |
| Elevation Min M: | 195 |
| Elevation Max M: | 343 |
| Area Km2: | 6.23 |
Fontaines-Saint-Clair (pronounced as /fr/) is a commune in the Meuse department in Grand Est in north-eastern France.