Gantimur

thumb|upright=0.7|Coat of arms of Gantimur as a Russian prince thumbnail|View of Nerchinsk (1710), in the middle the “Wooden Palace” Gantimur (; ; ) was a Daurian tribal chief and military leader. He is the ancestor of Russian princely Gantimurov family. He was born on the Nercha River, not far from what later became Nerchinsk Province.

Born into a family of eastern Siberian tribal chiefs of the siberian-transbaikalian Evenks and the Mongolian Daurian tribes, the details of his early life are unknown. His name is derived from the Mongolian gan ("steel") and tömör ("iron"). He was a relative of the khans of the Jurchen Later Jin dynasty that had come to the Chinese imperial throne with Nurhaci as the first Qing dynasty emperor.