| Sézanne | |
| Commune Status: | Commune |
| Arrondissement: | Épernay |
| Canton: | Sézanne-Brie et Champagne |
| Image Coat Of Arms: | Blason ville fr Sézanne 51.svg |
| Insee: | 51535 |
| Postal Code: | 51120 |
| Mayor: | Sacha Hewak[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | CC Sézanne-Sud Ouest Marnais |
| Coordinates: | 48.7197°N 3.7236°W |
| Elevation M: | 148 |
| Area Km2: | 22.82 |
Sézanne (pronounced as /fr/) is a commune in the Marne department and Grand Est region in north-eastern France. Its inhabitants are called Sézannais.