Dunama IV (Dunama bin ÿUmar) was mai (ruler) of the KanemâÂÂBornu Empire in the early 15th century, ruling approximately 1423âÂÂ1425. Dunama ruled during the "Era of Instability", a chaotic period of internal and external conflict in the empire.
Dunama was a son of mai Umar I Idrismi. Duname became mai in the early 15th century after the deposition of his predecessor, Uthman III Kalinumuwa. Uthman was overthrown by the kaigama (chief general) Nikale bin Ibrahim and the yerima (another prominent official) Kade. According to the girgam (royal chronicle of the empire), Dunama's horses "were to him as mothers".
Dunama ruled for two or four years. He was murdered at a site recorded as Nánigham and succeeded as mai by his brother Abdullah III Dakumuni.