Olyokma

Water type: River
Basin: Lena -> Laptev sea
Continent: Asia
Climates: Continental, Subpolar
Country: Russia

The Olyokma (Russian: Олёкма, Olyokma, IPA: Yakut: Өлүөхүмэ, Ölüöxüme) is a tributary of the Lena in eastern Siberia.
The river is 1,436 kilometres long, and has a drainage basin of 210,000 square kilometres.