Dejazmach Birru Aligaz was a warlord of 19th century Ethiopia during the Zemene Mesafint. As Dejazmach, he held the governorships of different districts such as Lasta and Dembiya and was made governor of Dawint, Wollo in 1842 by Ras Ali II of Yejju. He was the son of Ras Aligaz Abba Seru Gwangul, and had a son called Dejazmach Zegeye.