| Lac des Brenets | |
|---|---|
| Lac de Chaillexon | |
 | |
  Lac des Brenets  Lac des Brenets  Lac des Brenets  Lac des Brenets  Lac des Brenets | |
| Location | Franche-Comté, Canton of Neuchâtel |
| Coordinates | 47°4′9″N 6°41′52″E / 47.06917°N 6.69778°E |
| Primary inflows | Doubs, Rançonnière |
| Primary outflows | Doubs |
| Basin countries | France, Switzerland |
| Max. length | 3.5 km (2.2 mi) |
| Max. width | 250 m (820 ft) |
| Surface area | 0.8 km2 (0.31 sq mi) |
| Max. depth | 26 m (85 ft) |
| Water volume | 5.7 hm3 (4,600 acre⋅ft) |
| Surface elevation | 750 m (2,460 ft) |
| Settlements | Villers-le-Lac |
 | |
Lac des Brenets (Swiss name) or Lac de Chaillexon (French name) is a lake on the river Doubs on the border of Switzerland and France.