Tarkhan (Old Turkic Tarqan; Mongolian: Darqan or Darkhan; Persian:ترخان; Chinese:達干; Arabic:طرخان; alternative spellings Tarkan, Tarkhaan, Tarqan, Tarchan, Turxan, Tarcan or Turgan) is an ancient Central Asian title used by various Indo-Europeans (i.e. Iranian and Tokharian), Turkic peoples, and by the proto-Mongols and Mongols. Its use was common among the successors of the Mongol Empire.