Hatun Ukru (Quechua hatun big, ukru hole, pit, hollow, Ref Laime Ana Arias Torre, Toponimia de Ticapampa, in: Letras, Departamento Académico de Humanidades, Universidad Nacional Mayor de San Marcos, Facultad de Letras, Facultad de Letras y Ciencias Humanas, p. 191 "big hollow", Hispanicized spelling Atunucro) is a mountain in the Cordillera Central in the Andes of Peru, about 4800 meters high.