Abu'l Husain Nasr known by his title Ilig Khan, also Ilig Khan Nasr, was a ruler of the Kara-Khanids. He was a son of Ali Arslan Khan.
The Kara-Khanid Ilig Khan Nasr (left) facing Mahmud of Ghazni riding an elephant in 1017–1018. Jami al-Tawarikh, 1306-14 (Edinburgh Or Ms 20)