The Pongola or Phongolo River (Afrikaans: Pongolarivier) is a river in South Africa. It is a tributary of the Maputo River. It rises near Utrecht in northern KwaZulu-Natal, flows east through Pongola, is dammed at Pongolapoort, and crosses the Ubombo Mountains; then it flows north towards Mozambique, joining the Maputo River.