| La Petite-Fosse | |
| Commune Status: | Commune |
| Arrondissement: | Saint-Dié-des-Vosges |
| Canton: | Saint-Dié-des-Vosges-2 |
| Insee: | 88345 |
| Postal Code: | 88490 |
| Mayor: | Jean-Marie Cuny[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | CA Saint-Dié-des-Vosges |
| Coordinates: | 48.321°N 7.054°W |
| Elevation M: | 515 |
| Elevation Min M: | 440 |
| Elevation Max M: | 870 |
| Area Km2: | 5.04 |
La Petite-Fosse (in French pronounced as /la pətit fos/) is a commune in the Vosges department in Grand Est in northeastern France.