Bir III Othman
| Bir III Othman | |
|---|---|
| Mai of the Kanem–Bornu Empire | |
| Reign | 1390–1422 |
| Predecessor | Kade II Afunu |
| Successor | Othman III Kalinumuwa |
| Issue | Dunama V Ahmad |
| Dynasty | Sayfawa dynasty |
| Father | Idris I |
Bir III Othman (Biri, Biri ʿUthmān, or ʿUthmān bin Idrīs) was the mai of the Kanem–Bornu Empire in 1390–1422, ruling during a century-long chaotic period of internal and external conflict.