The Cuango or Kwango (Portuguese: Rio Cuango; French: Rivière Kwango; Dutch: Kwango Rivier) is a transboundary river of Angola and Democratic Republic of Congo. It is the largest left bank tributary of the Kasai River in the Congo River basin. It flows through Malanje in Angola. The Kwango River basin has large resources of diamonds in the Chitamba-Lulo Kimberlite Cluster in Lunda Norte Province, discovered in the main river channel and on flats and terraces in its flood plains. In the 19th century, the Kwango River was also called the Quango, especially in the works of explorer David Livingstone.
