The Sambezi, also called Zambezi or Zambesi, is the fourth-longest river in Africa. Its catchment area covers 1,332,574 km², about half the size of that of the Nile.
The source area of the Sambezi is located in a swampland and a rolling forest area in the northwest of Zambia at an elevation of about 1,380 m at the border between Democratic Republic of the Congo and Angola. On its way, the river flows through Angola, Zambia and Mozambique, where it flows into an 880 km large delta into the Indian Ocean. The Sambezi is 2,574 km long and partly forms the national borders between Zambia and Namibia as well as between Zambia and Zimbabwe. Between the cities of Livingstone in Zambia and Victoria Falls in Zimbabwe, it falls 110 m down the most powerful waterfall of Africa, the Victoria Falls. Further downstream, it falls down the Chavuma Falls at the border between Zambia and Angola and the Ngonye Falls, near Sioma, in the west of Zambia.