| Saint-Senoux | |
| Native Name: | (Gallo) |
| Commune Status: | Commune |
| Coordinates: | 47.9067°N -1.7864°W |
| Insee: | 35312 |
| Postal Code: | 35580 |
| Arrondissement: | Redon |
| Canton: | Guichen |
| Mayor: | Maryline Lair[1] |
| Term: | 2023 - 2026 |
| Intercommunality: | Vallons de Haute-Bretagne |
| Elevation Min M: | 7 |
| Elevation Max M: | 111 |
| Area Km2: | 18.29 |
Saint-Senoux (in French pronounced as /sɛ̃ sənu/; ; Gallo: Saent-Senór) is a commune in the Ille-et-Vilaine department in Brittany in northwestern France.
Inhabitants of Saint-Senoux are called Sennonais in French.