Huánuco (Spanish pronunciation: [ˈwanuko]) is a department of Peru. It is bordered by the La Libertad, San Martín, Loreto and Ucayali departments in the north, Ucayali to the east, Pasco to the south and Lima and Ancash to the west. It is administered by a regional government. Its capital is the city of Huánuco.
Huánuco has a rugged topography, comprising parts of the Sierra and the High Jungle (mountain rim) regions. Being equidistant from the north and the south of the country, it has the privilege of having a mild weather with an average annual temperature of 20 °C (68 °F).