| Coëx | |
| Commune Status: | Commune |
| Image Coat Of Arms: | Blason ville fr Coëx (Vendée).svg |
| Arrondissement: | Les Sables-d'Olonne |
| Canton: | Saint-Hilaire-de-Riez |
| Insee: | 85070 |
| Postal Code: | 85220 |
| Mayor: | Thierry Favreau[1] |
| Term: | 2021 - 2026 |
| Intercommunality: | CA Pays de Saint-Gilles-Croix-de-Vie |
| Coordinates: | 46.6986°N -1.7594°W |
| Elevation Min M: | 2 |
| Elevation Max M: | 61 |
| Area Km2: | 39.56 |
Coëx (in French pronounced as /kɔɛks/) is a commune of the Vendée department in the Pays de la Loire region in western France. The organist Joseph Joubert (1878–1963) was born in Coëx.