| Saint-Brieuc-des-Iffs | |
| Native Name: | (Gallo) |
| Commune Status: | Commune |
| Coordinates: | 48.2919°N -1.85°W |
| Insee: | 35258 |
| Postal Code: | 35630 |
| Arrondissement: | Rennes |
| Canton: | Combourg |
| Mayor: | Rémi Couet[1] |
| Term: | 2020 - 2026 |
| Elevation Min M: | 34 |
| Elevation Max M: | 133 |
| Area Km2: | 8.29 |
Saint-Brieuc-des-Iffs (in French pronounced as /sɛ̃ bʁijø de.z‿if/, literally Saint-Brieuc of Les Iffs; Gallo: Saent-Berioec, Breton: Sant-Brieg-an-Ivineg) is a commune in the Ille-et-Vilaine department in Brittany in northwestern France.
Inhabitants of Saint-Brieuc-des-Iffs are called briochins in French.