| Sachy | |
| Commune Status: | Commune |
| Image Coat Of Arms: | Blason Sachy.svg |
| Arrondissement: | Sedan |
| Canton: | Carignan |
| Insee: | 08375 |
| Postal Code: | 08110 |
| Mayor: | Arlette Braconnier-Servais[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | Portes du Luxembourg |
| Coordinates: | 49.6692°N 5.1336°W |
| Elevation M: | 161 |
| Area Km2: | 5.9 |
Sachy (in French pronounced as /saʃi/) is a commune in the Ardennes department in northern France.