Tréguennec
| Tréguennec Tregeneg | |
|---|---|
| The parish church of Our Lady of Mercy | |
| Location of Tréguennec | |
| Coordinates: 47°53′32″N 4°19′56″W / 47.8922°N 4.3322°W | |
| Country | France | 
| Region | Brittany | 
| Department | Finistère | 
| Arrondissement | Quimper | 
| Canton | Plonéour-Lanvern | 
| Intercommunality | Pays Bigouden Sud | 
| Government | |
| • Mayor (2020–2026) | Stéphane Morel | 
| Area 1 | 9.61 km2 (3.71 sq mi) | 
| Population  (2022) | 312 | 
| • Density | 32/km2 (84/sq mi) | 
| Time zone | UTC+01:00 (CET) | 
| • Summer (DST) | UTC+02:00 (CEST) | 
| INSEE/Postal code | 29292 /29720 | 
| Elevation | 0–53 m (0–174 ft) | 
| 1 French Land Register data, which excludes lakes, ponds, glaciers > 1 km2 (0.386 sq mi or 247 acres) and river estuaries. | |
Tréguennec (French pronunciation: [tʁeɡɛnɛk]; Breton: Tregeneg) is a commune in the Finistère department of Brittany in north-western France.