Alp Er Tunga

Alp Er Tunga or Alp Er Tonga (Alp "brave, hero, conqueror, warrior", Er "man, male, soldier, Tom", Tonga/Tunga "Siberian tiger") is a mythical Turkic hero who was mentioned in Mahmud al-Kashgari's Dīwān Lughāt al-Turk, Yusuf Balasaguni's Kutadgu Bilig and in the Vatican manuscript of Oghuznama by an unknown writer.

The Karakhanids claimed to have descended from Alp Er Tunga.