| Gauchy | |
| Commune Status: | Commune |
| Arrondissement: | Saint-Quentin |
| Canton: | Saint-Quentin-3 |
| Insee: | 02340 |
| Postal Code: | 02430 |
| Mayor: | Jean-Marc Weber[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | CA Saint-Quentinois |
| Coordinates: | 49.825°N 3.2706°W |
| Elevation M: | 80 |
| Elevation Min M: | 68 |
| Elevation Max M: | 118 |
| Area Km2: | 6.24 |
Gauchy (in French pronounced as /ɡoʃi/) is a commune in the Aisne department in Hauts-de-France in northern France.