The Bongo Massif (French: massif des Bongo), also known as the Tondou Massif, is a mountain range in north-eastern Central African Republic, near the Sudan border.^[1] The source of Bahr al-Arab is found within the massif. South of the massif is the Plateau of Ouadda (Coordinates: 08°40′0″N 22°25′0″E / 8.66667°N 22.41667°E / 8.66667; 22.41667).

Summits in the Bongos include:

• Mount Toussoro, 1368 meters

The lithology is dominated by rugged sandstone.

During November, December, and January, fires of several kilometres size advance down from the Chadian border.