| Prez-sous-Lafauche | |
| Commune Status: | Commune |
| Image Coat Of Arms: | Blason Prez-sous-Lafauche.svg |
| Arrondissement: | Chaumont |
| Canton: | Poissons |
| Insee: | 52407 |
| Postal Code: | 52700 |
| Mayor: | Thierry Mocquet[1] |
| Term: | 2020 - 2026 |
| Coordinates: | 48.2872°N 5.4933°W |
| Elevation M: | 330 |
| Area Km2: | 22.59 |
Prez-sous-Lafauche (in French pronounced as /pʁe su lafoʃ/, literally Prez under Lafauche) is a commune in the Haute-Marne department in north-eastern France.