The Mandara Mountains (Monts Mandara) are a volcanic range extending about 200km (about 125 mi) along the northern part of the Cameroon-Nigeria border, from the Benue River in the south () to the north-west of Maroua in the north (). The highest elevation is 1,494 m (4,900 ft), the summit of Mount Oupay ().
The region is densely populated, mainly by speakers of Chadic languages. The Mofu ethnic group lives in the Mandara Mountains.