| Fonteny | |
| Commune Status: | Commune |
| Image Coat Of Arms: | Blason de la ville de Fonteny (Moselle).svg |
| Arrondissement: | Sarrebourg-Château-Salins |
| Canton: | Le Saulnois |
| Insee: | 57225 |
| Postal Code: | 57590 |
| Mayor: | Alain Donatin[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | CC du Saulnois |
| Coordinates: | 48.8817°N 6.4656°W |
| Elevation M: | 240 |
| Elevation Min M: | 238 |
| Elevation Max M: | 350 |
| Area Km2: | 15.7 |
Fonteny (pronounced as /fr/; de|Fonteningen) is a commune in the Moselle department in Grand Est in north-eastern France.