- Kadéï, Kadéi, Kadeï and Kadei redirect here. For the province or region in Cameroon, see Kadey
The Kadéï River is a tributary of the Sangha River that flows through Cameroon and the Central African Republic. Its total drainage basin is 24,000 km². The river rises from the eastern Adamawa Plateau, southeast of Garoua-Boulaï (5°53′50″N 14°33′30″E / 5.89722°N 14.55833°E in Cameroon's East Province. The Kadéï is swelled by two tributaries, the Doumé at Mindourou (4°7′45″N 14°34′22″E / 4.12917°N 14.57278°E) and the Boumbé (4°6′45″N 15°7′10″E / 4.11250°N 15.11944°E), before flowing east into the Central African Republic. At Nola (3°31′10″N 16°2′35″E / 3.51944°N 16.04306°ECoordinates: 3°31′10″N 16°2′35″E / 3.51944°N 16.04306°E), the Kadéï meets the Mambéré and becomes the Sangha. The Kadéï is part of the Congo River basin.
- ^ Gwanfogbe 27–8; Neba 43.
- Gwanfogbe, Mathew, Ambrose Meligui, Jean Moukam, and Jeanette Nguoghia (1983). Geography of Cameroon. Hong Kong: Macmillan Education Ltd.
- Neba, Aaron (1999). Modern Geography of the Republic of Cameroon, 3rd ed. Bamenda: Neba Publishers.