The Olyokma River ( ; ) is a tributary of the Lena in eastern Siberia. To the west is the Vitim River, to the south the Shilka River and Amur River and to the east, the upper Aldan River. Its right branch, the River, leads to a portage to the Shilka. Yerofey Khabarov used this route to travel from the Lena to the Amur. Other tributaries are the and the Chara Rivers.