Quémènès
| Native name:  Kemenez | |
|---|---|
| The farm on Quémènès as seen from the south | |
| Geography | |
| Location | Iroise Sea, Celtic Sea, North Atlantic Ocean | 
| Coordinates | 48°22′25″N 4°53′58″W / 48.37361°N 4.89944°W | 
| Archipelago | Molène Archipelago | 
| Area | 0.3 km2 (0.12 sq mi) | 
| Length | 1.6 km (0.99 mi) | 
| Width | 0.4 km (0.25 mi) | 
| Coastline | 3.42 km (2.125 mi) | 
| Highest elevation | 13 m (43 ft) | 
| Administration | |
| Region | Brittany | 
| Department | Finistere | 
| Commune | Le Conquet | 
| Demographics | |
| Population | 3 (2023) | 
| Languages | French | 
| Additional information | |
| Time zone | |
| • Summer (DST) | |
| Official website | quemenes.bzh | 
Quémènès or Quemenes (French: Île de Quémènès; Breton: Kemenez) is an island in the Molène Archipelago in the Atlantic off Brittany, France. As of 2023, it has a population of 3. It is administered as part of the commune of Le Conquet, St-Renan Canton, Brest Arrondissement, in Finistère Department.