| Preux-au-Sart | |
| Commune Status: | Commune |
| Image Coat Of Arms: | Blason ville fr Preux-au-Sart (Nord).svg |
| Arrondissement: | Avesnes-sur-Helpe |
| Canton: | Aulnoye-Aymeries |
| Insee: | 59473 |
| Postal Code: | 59144 |
| Mayor: | Jean-Baptiste Guiot[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | CC Pays de Mormal |
| Coordinates: | 50.2842°N 3.6881°W |
| Elevation Min M: | 80 |
| Elevation Max M: | 139 |
| Area Km2: | 5.09 |
Preux-au-Sart (in French pronounced as /pʁø o saʁ/) is a commune in the Nord department in northern France.[2]