Chanyu
Reign: 692 - 716
Died: July 22, 716 (aged 51–52), Manchuria
Father: Etmish Beg
Religion: Tengrism

Qapaghan or Qapghan Qaghan (Old Turkic: 𐰴𐰯𐰍𐰣:𐰴𐰍𐰣, romanized: Qapaγan qaγan, lit. meaning "the conqueror", simplified Chinese: 迁善; traditional Chinese: 遷善; pinyin: Qiānshàn, Xiao'erjing: ٿِيًا شًا, Dungan: Чяншан, Chinese: 阿史那•默啜; pinyin: Āshǐnà Mòchuò, also called Bögü Qaghan (Old Turkic: 𐰋𐰇𐰏:𐰴𐰍𐰣, romanized: Bögü qaγan) in Bain Tsokto inscriptions)[5] was the second khagan of the Second Turkic Khaganate during Wu Zetian's reign and was the younger brother of the first kaghan, Ilterish Qaghan.