| Cheix-en-Retz | |
| Native Name: | (Gallo) |
| Commune Status: | Commune |
| Image Coat Of Arms: | Blason ville fr Cheix-en-Retz.svg |
| Arrondissement: | Nantes |
| Canton: | Machecoul-Saint-Même |
| Insee: | 44039 |
| Postal Code: | 44640 |
| Mayor: | Luc Normand[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | CA Pornic Agglo Pays de Retz |
| Coordinates: | 47.1825°N -1.8142°W |
| Elevation Min M: | 0 |
| Elevation Max M: | 27 |
| Area Km2: | 8.34 |
Cheix-en-Retz (in French pronounced as /ʃɛ ã ʁɛ/, literally Cheix in Retz; Gallo: Chaèz or Chi, Breton: Keiz-Raez) is a commune in the Loire-Atlantique department in western France.