| Laguna del Laja | |
| Coords: | -37.3167°N -89°W |
| Outflow: | Laja River |
| Basin Countries: | Chile |
| Length: | 32.5km (20.2miles) |
| Width: | 10km (10miles) |
| Area: | 128.1km2 |
| Elevation: | 1360m (4,460feet) |
| Pushpin Map: | Chile |
| Pushpin Map Alt: | Location of Laja Lake in Chile. |
Laguna del Laja is a lake located in the Bío-Bío Region of Chile. The lake borders and gives its name to Laguna del Laja National Park.