Trévérien
Trévérien 
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The church in Trévérien  | |
Location of Trévérien  | |
| Coordinates: 48°22′18″N 1°55′37″W / 48.3717°N 1.9269°W | |
| Country | France | 
| Region | Brittany | 
| Department | Ille-et-Vilaine | 
| Arrondissement | Saint-Malo | 
| Canton | Combourg | 
| Intercommunality | CC Bretagne Romantique | 
| Government | |
| • Mayor (2020–2026) | Vincent Melcion | 
Area 1  | 12.08 km2 (4.66 sq mi) | 
| Population  (2022)  | 918 | 
| • Density | 76/km2 (200/sq mi) | 
| Time zone | UTC+01:00 (CET) | 
| • Summer (DST) | UTC+02:00 (CEST) | 
| INSEE/Postal code | 35345 /35190  | 
| Elevation | 13–68 m (43–223 ft) | 
| 1 French Land Register data, which excludes lakes, ponds, glaciers > 1 km2 (0.386 sq mi or 247 acres) and river estuaries. | |
Trévérien (French pronunciation: [tʁeveʁjɛ̃]; Breton: Treverian) is a commune in the Ille-et-Vilaine department of Brittany in northwestern France.