| Ñawinqucha | |
| Pushpin Map: | Peru |
| Location: | Peru Junín Region, Jauja Province |
| Coords: | -11.8675°N -75.8844°W |
| Ñawinqucha Dam | |
| Location Map: | Peru |
| Country: | Peru |
| Dam Height: | 4m (13feet) |
| Plant Operator: | Electroperu |
Ñawinqucha (Quechua ñawi button hole / eye, -n a suffix, qucha lake, hispanicized spelling Nahuincocha) is a lake in Peru located in the Junín Region, Jauja Province, Canchayllo District, northeast of the Paryaqaqa mountain range. The lake belongs to the watershed of the Mantaro River.
In 1995 the 4m (13feet) high Ñawinqucha dam was erected at the eastern end of the lake at . The dam is operated by Electroperu.