The Khanate of Sibir was a Siberian Tatar Khanate in western Siberia, founded at the end of the 15th century, following the break-up of the Golden Horde. Throughout its history, members of the Shaybanid and Taibugid dynasties often contested the rulership over the Khanate between each other; both of these competing tribes were direct patrilineal descendants of Genghis Khan through his eldest son Jochi and Jochi's fifth son Shayban (Shiban). The area of the Khanate had once formed an integral part of the Mongol Empire, and later came under the control of the White Horde and the Golden Horde of 1242–1502.

Siberian Tatars or Sybyrs/Sibirs are the indigenous Turkic-speaking population of the forests and steppes of Western Siberia, originating in areas stretching from somewhat east of the Ural Mountains to the Yenisey River in Russia. The Siberian Tatars call themselves Yerle Qalıq, to distinguish themselves from more recent Volga Tatar immigrants to the region.