| Champagné-les-Marais | |
| Commune Status: | Commune |
| Arrondissement: | Fontenay-le-Comte |
| Canton: | Luçon |
| Insee: | 85049 |
| Postal Code: | 85450 |
| Mayor: | Bernard Landais[1] |
| Term: | 2020 - 2026 |
| Coordinates: | 46.3817°N -1.1225°W |
| Elevation Min M: | 0 |
| Elevation Max M: | 6 |
| Area Km2: | 49.82 |
Champagné-les-Marais (in French pronounced as /ʃɑ̃paɲe le maʁɛ/) is a commune in the Vendée department in the Pays de la Loire region in western France.