Qarwaqucha (Quechua qarwa yellowish, qucha lake,[1][2] hispanicized spelling Carhuacocha) is a lake in Peru located in the Junín Region, Jauja Province, Canchayllo District.

It lies southeast of the peaks of Tunshu and Tukumach'ay and west of a lake named Wayllakancha (Huayllacancha).

It belongs to the watershed of the Mantaro River.

[3][4] The Qarwaqucha dam was built in 1995.

It was constructed by GUICONSA and is operated by Electroperú S.A.[5] This Junín Region geography article is a stub.