Mirza Abū'l-Khair Muhammed Khan bin Qājı Abdūllah Sultan, more commonly known by his short name Abū'l-Khair Khan (1693–1748) was leader of the Kazakh Little jüz in present-day western and central Kazakhstan. During this period, the Little jüz participated in the Kazakh-Dzungar Wars mainly to avenge the "Great Disaster" Dzungar invasion of major Kazakh territories. Under Abu'l-Khair's strong leadership, the Kazakh ghazis defeated Dzungar forces at the Bulanty river in 1726 and in the Battle of Anrakai in 1729.