Hatun Hirka (Quechua hatun big, hirka mountain, "big mountain", also spelled Atun Irca) is a mountain in the Cordillera Negra in the Andes of Peru which reaches a height of approximately . It is located in the Ancash Region, Huaylas Province, Pamparomas District, and in the Santa Province, Cáceres del Perú District, northwest of Pamparomas. It borders the Pacific Ocean.