Umma Khan V Avar nicknamed Great or Mad — Avar nutsal, ruler of Avar Khanate from 1774 to 1801. Under Khan, the Avar Khanate expanded its borders both by subordinating the Avar free societies, and at the expense of neighboring territories. Khan was paid tributes by the Georgian king Erekle II, Derbent, Quba, Baku, Shirvan, Shaki khans and Akhaltsikhe pasha.