Yanajirca (possibly from Quechua yana black, hirka mountain)[2] is a 4,782-metre-high (15,689 ft) mountain in the Andes of Peru.

The mountain is located in the Huánuco Region, Lauricocha Province, Jesús District.

It is situated northwest of a lake named Patarcocha and southwest of Condorhuachanan.

An intermittent stream named Luychos (Quechua for "deer", Luychu[3]) originates on the southern slope of Yanajirca.

This Huánuco Region geography article is a stub.