Ouham River

Ouham River ranks 7th on the list of the longest rivers in the Central African Republic. The Ouham River is a river in central Africa that is one of the primary sources of the Chari River. It begins in the western Central African Republic's elevated plateau country, then flows north, crossing the international border into Chad, where it is known as Bar Sara, and joining the Chari just north of Sarh. The Ouham is believed to be 420 miles (676 kilometers) long from its longest (eastern) branch to its confluence with the Chari; its lower course is navigable for commercial traffic.

Between the prefectures of Nana-Mambéré and Ouham-Pendé in the Central African Republic, the Ouham flows into Chad, where it meets the Chari approximately 25 kilometers north of Sarh. Baba, Fafa, Nana Bakassa, and Nana Barya are tributaries. The river flow was measured at Mossala, Chad, over a 33-year period (1951–1984) in Mossala, a town 150 kilometers above the Chari's mouth.

Length: 676 km