Pumacocha (possibly from Quechua puma cougar, puma, qucha lake,) is a lake in Peru located in the Junín Region, Yauli Province, Yauli District. It is situated at a height of approximately 4,265 m (13,993 ft), about 5.144 km long and 0.95 km at its widest point. Pumacocha lies northwest of a lake named Huallacocha (possibly from in Quechua Wallaqucha) and southwest of the town of Yauli.