Yanajaja is a mountain in the Vilcanota mountain range in the Andes of Peru, about 5,550 m (18,210 ft) high. It is situated in the Cusco Region, Canchis Province, Pitumarca District and in the Quispicanchi Province, Ocongate District. Yanajaja lies south of the peak of Q'ampa, southwest of Callangate, west of the river Chillcamayu, and east of Ausangate, close to Chilinita.