| Sermaize-les-Bains | |
| Commune Status: | Commune |
| Image Coat Of Arms: | Blason Sermaize-les-Bains.svg |
| Arrondissement: | Vitry-le-François |
| Canton: | Sermaize-les-Bains |
| Insee: | 51531 |
| Postal Code: | 51250 |
| Mayor: | Saïd Yacoubi[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | Côtes de Champagne et Val de Saulx |
| Coordinates: | 48.7844°N 4.9119°W |
| Elevation M: | 131 |
| Area Km2: | 17.69 |
Sermaize-les-Bains (pronounced as /fr/) is a commune in the Marne department in north-eastern France.