Alp Er Tunga or Alp Er Tonğa[1] (Alp "brave, hero, conqueror, warrior",[2] Er "man, male, soldier, Tom",[3] Tonğa "Siberian tiger”) is a mythical hero who was mentioned in Mahmud al-Kashgari's Divânu Lügati't-Türk (Arabic: دیوان لغات الترک Compendium of the language of Turks), Turkic mythology and Turkish literature.
In Turkic literature he is considered to be the same character as Afrasiab in the Persian Epic Shahnameh.[4][5] He is sometimes mentioned as a khan of Saka (Scythia).[6]