Bumin Khan (? - 552) is the founder of the empire of the Köktürks.

In the Chinese texts, it is mentioned under the name of Tumen . Bumin means cloud of smoke . One does not know large - thing of him, and the majority of information about it come from legends according to which it would have gathered under its authority of the Turkish populations living in the mythical valley of Ergenikon, in the mounts Altaï.

In 542, it came to end from the Tieli tribes, revolted against their Masters Avars. He asked for in exchange the hand of a miserly princess, but one did not grant to him. It entered then in relation to the Chinese kingdom of Wei. One preserves the trace of a diplomatic mission carried out by an emissary sogdien, An Nopantuo, which sealed an alliance between Bumin and Wei by concluding a marriage between Bumin itself and the princess Wei Chang' it, in 545. After having started formal relations with China, it benefitted new credibility to link the Turkish tribes and to overcome Avars. Its victory enabled him to be proclaimed It-Khagan ( large king ) of the Köktürks to the mount crowned Ötüuken. In one century, Köktürksse constituted an immense empire in Central Asia, but Bumin died the year even where it had founded its State.