Saint-Benoît-des-Ondes
Saint-Benoît-des-Ondes 
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The town hall of Saint-Benoît-des-Ondes  | |
Location of Saint-Benoît-des-Ondes  | |
| Coordinates: 48°37′14″N 1°51′01″W / 48.6206°N 1.8503°W | |
| Country | France | 
| Region | Brittany | 
| Department | Ille-et-Vilaine | 
| Arrondissement | Saint-Malo | 
| Canton | Dol-de-Bretagne | 
| Intercommunality | CA Pays de Saint-Malo | 
| Government | |
| • Mayor (2020–2026) | Bernadette Letanoux | 
Area 1  | 2.92 km2 (1.13 sq mi) | 
| Population  (2022)  | 966 | 
| • Density | 330/km2 (860/sq mi) | 
| Time zone | UTC+01:00 (CET) | 
| • Summer (DST) | UTC+02:00 (CEST) | 
| INSEE/Postal code | 35255 /35114  | 
| Elevation | 2–10 m (6.6–32.8 ft) | 
| 1 French Land Register data, which excludes lakes, ponds, glaciers > 1 km2 (0.386 sq mi or 247 acres) and river estuaries. | |
Saint-Benoît-des-Ondes (French pronunciation: [sɛ̃ bənwa de.z‿ɔ̃d]; Breton: Lanwezoù) is a commune in the Ille-et-Vilaine Department in Brittany in northwestern France.