The Cunene River (Portuguese spelling) or Kunene River (Namibian spelling) is a river in Southern Africa. It flows from the Angola highlands south to the border with Namibia. It then flows west along the border until it reaches the Atlantic Ocean. It is one of the few perennial rivers in the region. It is about 1,050 kilometres (652 mi) long, with a drainage basin 106,560 square kilometres (41,143 sq mi) in area. Its mean annual discharge is 174 m³/s (6,145 cfs) at its mouth. The Epupa Falls lie on the river. Olushandja Dam dams a tributary of the river, the Etaka, and helps provide the Ruacana Power Station with water.