Boumba River is a river in the South Cameroon Plateau of southeast Cameroon. The river is a tributary of the Dja River and is adjacent to the Boumba Bek National Park, which is located between the Boumba and the Bek River.
The river rises in the Abong-Mbang region. The Dja, Boumba, and Sangha River have carved out valleys in the South Cameroon Plateau and flow slowly with seasonal flooding during the rainy season. The forested area around the river is a diverse ecosystem. Logging is an industry in the area. The remote region is home to the Baka. Communities in the area engage in substistence farming, hunting, fishing and gathering. The area is also used illegal commercial bushmeat hunters and traders and trophy hunters. Parrots and ivory are also smuggled through the area.