| Challwaqucha | |
| Location: | Peru Lima Region, Huaral Province |
| Coords: | -11.0425°N -76.5556°W |
| Pushpin Map: | Peru |
Challwaqucha (Quechua challwa fish, qucha lake, "fish lake", hispanicized spelling Chalhuacocha) is a lake in Peru located in the Lima Region, Huaral Province, in the northeast of the Pacaraos District. It lies west of the lake named Warunqucha of the Pasco Region.