Kotosh is an archaeological site near the town of Huánuco, Peru, consisting of a series of buildings comprising six periods of continuous occupation.

Huánuco is a department and region in central Peru. It is bordered by the La Libertad, San Martín, Loreto and Ucayali regions in the north, the Ucayali Region in the east, the Pasco Region in the south and the Lima and Ancash regions in the west. Its capital is the city Huánuco.