| Saint-Guinoux | |
| Commune Status: | Commune |
| Image Coat Of Arms: | Blason ville fr Saint-Guinoux (Ille-et-Vilaine).svg |
| Coordinates: | 48.5767°N -1.8825°W |
| Insee: | 35279 |
| Postal Code: | 35430 |
| Arrondissement: | Saint-Malo |
| Canton: | Dol-de-Bretagne |
| Mayor: | Pascal Simon[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | CA Pays de Saint-Malo |
| Elevation Min M: | 2 |
| Elevation Max M: | 48 |
| Area Km2: | 6.37 |
Saint-Guinoux (in French pronounced as /sɛ̃ ɡinu/; Breton: Sant-Gwênoù) is a commune in the Ille-et-Vilaine department in Brittany in northwestern France.
Inhabitants of Saint-Guinoux are called guinoléens in French.