| Lac de Bettaniella | |
| Location: | Corsica |
| Coords: | 42.2106°N 9.0544°W |
| Type: | glacial |
| Basin Countries: | France |
| Area: | 0.075km2 |
| Max-Depth: | 32m (105feet) |
| Elevation: | 2321m (7,615feet) |
| Pushpin Map: | Corsica#France |
Lac de Bettaniella is a lake in Corsica, France. At an elevation of 2321 m, its surface area is 0.075 km². In French, it is sometimes alternatively (and abusively) known as Lac de Bellebone or Lac du Rotondo. It is the largest lake in Corsica.