| La Celle-sous-Montmirail | |
| Arrondissement: | Château-Thierry |
| Canton: | Condé-en-Brie |
| Insee: | 02147 |
| Postal Code: | 02540 |
| Commune: | Dhuys-et-Morin-en-Brie |
| Coordinates: | 48.8656°N 3.4669°W |
| Elevation M: | 120 |
| Elevation Min M: | 107 |
| Elevation Max M: | 184 |
| Area Km2: | 5.67 |
| Population: | 104 |
| Population Date: | 2021 |
| Population Footnotes: | [1] |
La Celle-sous-Montmirail (in French pronounced as /la sɛl su mɔ̃miʁaj/, literally La Celle under Montmirail) is a former commune in the department of Aisne in northern France. On 1 January 2016, it was merged into the new commune Dhuys-et-Morin-en-Brie.[2]