| Calafquén Lake | |
| Coords: | -39.52°N -72.1472°W |
| Type: | Glacial, moraine-dammed |
| Inflow: | Llancahue River |
| Outflow: | Pullinque River |
| Basin Countries: | Chile |
| Length: | 25km (16miles) |
| Width: | 7.7km (04.8miles) |
| Area: | 120.6km2 |
| Max-Depth: | 207m (679feet) |
| Elevation: | 209m (686feet) |
| Cities: | Coñaripe, Calafquén, Licán Ray |
| Pushpin Map: | Chile |
| Pushpin Map Alt: | Location of Calafquén Lake in Chile. |
Calafquén Lake (Mapudungun: Lake like a sea) is a lake of Chile, which straddles the border between the La Araucanía Region and Los Ríos Region. It is one of the Seven Lakes and forms part of the drainage basin of the Valdivia River.
The Villarrica Volcano is situated in the vicinity, north of the lake.