| Saint-Guen | |
| Native Name: | Sant-Wenn |
| Coordinates: | 48.2181°N -2.9353°W |
| Insee: | 22298 |
| Postal Code: | 22530 |
| Arrondissement: | Guingamp |
| Canton: | Guerlédan |
| Commune: | Guerlédan |
| Elevation Min M: | 119 |
| Elevation Max M: | 232 |
| Area Km2: | 17.95 |
| Population: | 407 |
| Population Date: | 2019 |
| Population Footnotes: | [1] |
Saint-Guen (in French pronounced as /sɛ̃ ɡɥɛ̃/;) is a former commune in the Côtes-d'Armor department of Brittany in northwestern France. On 1 January 2017, it was merged into the new commune Guerlédan.[2]
Inhabitants of Saint-Guen are called saint-guennois in French.