Boumba River is a river in South Cameroon Plateau in 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 forms in the Abong-Mbang region. The Dja, Boumba, and Sangha River have carved out valleys and flow slowly through the South Cameroon Plateau 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.