| La Chapelle-sous-Orbais | |
| Commune Status: | Commune |
| Arrondissement: | Épernay |
| Canton: | Dormans-Paysages de Champagne |
| Insee: | 51128 |
| Postal Code: | 51270 |
| Mayor: | Christophe Petit[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | Paysages de la Champagne |
| Coordinates: | 48.9103°N 3.7325°W |
| Elevation M: | 234 |
| Area Km2: | 14.54 |
La Chapelle-sous-Orbais (in French pronounced as /la ʃapɛl su.z‿ɔʁbɛ/, literally The Chapel under Orbais) is a commune in the Marne department in north-eastern France.