| La Chapelle-Basse-Mer | |
| Image Coat Of Arms: | Blason La Chapelle-Basse-Mer.svg |
| Arrondissement: | Nantes |
| Canton: | Vallet |
| Insee: | 44029 |
| Postal Code: | 44450 |
| Commune: | Divatte-sur-Loire |
| Coordinates: | 47.1621°N -1.2013°W |
| Elevation Min M: | 1 |
| Elevation Max M: | 79 |
| Area Km2: | 22.14 |
| Population: | 5656 |
| Population Date: | 2019 |
| Population Footnotes: | [1] |
| Demonym: | Chapelaines, Chapelains |
La Chapelle-Basse-Mer (in French pronounced as /la ʃapɛl bas mɛʁ/; Occitan (post 1500);: Chapel-Baz-Meur) is a former commune in the Loire-Atlantique department in western France. On 1 January 2016, it was merged into the new commune of Divatte-sur-Loire.[2]