Ahmad Alaq (died 1503) (Uyghur: أحمد‎), was Khan of eastern Moghulistan (Uyghurstan) from 1487 to 1503. He was the second son of Yunus Khan. His mother was Shah Begum, fourth daughter of Badakhshan prince Lali, who was considered to be the descendant of Alexander the Great.

During his father's lifetime Ahmad was behind several rebellions against him. When Yunus Khan took up residence in Tashkent in 1484, Ahmad and a large body of Moghuls fled to the steppes. In 1487, Ahmad's father died and was succeeded in the territory he still controlled by another son, Mahmud Khan.

Ahmad's reign was marked by conflicts with several of his neighbors. Conflict in the Ming Turpan Border Wars over Hami with the Ming Dynasty China resulted in an economic blockade of the region, which allowed the Chinese to eventually emerge victorious. A campaign against the Mirza Abu Bakr Dughlat‎, of the Dughlats of the south-west Tarim Basin, who were in theory vassals of the Moghul khans, resulted in the temporary acquisition of Kashgar in around 1499. Expeditions against the Kalmyks also seem to have resulted in a measure of success. For these expeditions he was nicknamed " Alach (Alaq) ", Slaughterer.