| Saint-Yvi | |
| Native Name: | Sant-Ivi |
| Commune Status: | Commune |
| Coordinates: | 47.9681°N -3.9336°W |
| Elevation Min M: | 26 |
| Elevation Max M: | 161 |
| Insee: | 29272 |
| Postal Code: | 29140 |
| Arrondissement: | Quimper |
| Canton: | Concarneau |
| Mayor: | Guy Pagnard[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | Concarneau Cornouaille Agglomération |
| Area Km2: | 27.05 |
Saint-Yvi (pronounced as /fr/; before September 2005: Saint-Yvy,[2]) is a commune in the Finistère department of Brittany in north-western France.[3]
Inhabitants of Saint-Yvi are called in French Saint-Yviens. The population has been increasing quickly since the year 1975.
Saint-Yvi is located 13km (08miles) east of Quimper. Historically, the town belongs to Cornouaille. The river Jet forms its northern border.