Inanch khan (, )The Secret History of the Mongols, §151 or Inanch BilgeThe Secret History of the Mongols, §191 Bogü khan (, )Zeki Velidi Togan, Çengiz Han (1155-1227), Istanbul 1969, pp.30-36 (in Turkish) or Inat khan was a khan of Naimans. According to Gumilev, his Christian name was John.

Reign He was from the Güčügüt clan of Naimans which followed the Betegin clan., trans. as He conquered Yenisei Kyrgyz with his elder brother Narkysh Tayang (, Naershi Tayang 納兒黑失太陽) and succeeded him later sometime. After Yelü Dashi's death 1143, he became independent. He supported Kerait ruler Toghril's brother Erke Qara against him in 1174.

After his death Naiman khanate were divided into two factions ruled by his sons.

Family He was married to Gürbesu (, ) and several other wives with whom he had at least two sons:

Taibuqa, also known as Tayang khan Buyruq khan

Gürbesu later married to his step-son Taibuqa in a levirate marriage.

Character He was reported be a man of honor among Naimans according to The Secret History of the Mongols.

References