Khagan Old Turkic Latin alphabet: kaɣan Mongolian Cyrillic alphabet: хаан Latin alphabet: khaan Chinese Characters Chinese Character: 可汗 Standard Mandarin Chinese Hanyu Pinyin : kèhán Korean Hangul: Revised Romanization: gahan McCune-Reischauer: kahan Khagan or Great Khan (Old Turkic ' ; ; ; alternatively spelled Chagan, Khaghan, Kagan, Kağan, Qagan, Qaghan), is a title of imperial rank in th… (More on Khagan)