Ali I of Bornu

Ali II (ʿAlī bin Idrīs ), called Ali Zainami, was briefly mai (ruler) of the Kanem–Bornu Empire in the mid-16th century, ruling approximately 1544–1545. (Most king lists (girgams) and chronicles translated in the 19th–20th centuries give Ali a reign of just one year (Barth, Palmer, Nachtigal).) Landeroin gives Ali a reign of 5 years and 5 months. Urvoy gives 4 years. As a result of this, and due to different calculations for other mais, various dates have been given for his reign, including 1545 (Barth), 1545–1546 (Palmer), 1544–1548 (Urvoy), 1538–1543 (Landeroin), and 1562–1563 (Nachtigal).

Ali had a short reign, described by the German explorer Heinrich Barth (who visited Bornu in the mid-19th century) as "too short to be of any real importance".