| Sacy | |
| Commune Status: | Commune |
| Image Coat Of Arms: | Blason ville fr Sacy(51).svg |
| Arrondissement: | Reims |
| Canton: | Fismes-Montagne de Reims |
| Insee: | 51471 |
| Postal Code: | 51500 |
| Mayor: | Éric Léger[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | CU Grand Reims |
| Coordinates: | 49.1978°N 3.9492°W |
| Elevation M: | 125 |
| Elevation Min M: | 89 |
| Elevation Max M: | 259 |
| Area Km2: | 5.56 |
Sacy (in French pronounced as /sasi/) is a commune in the Marne department in north-eastern France.
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