The Bur (Russian: Бур; Yakut: Буур, Buur) is a river in Yakutia (Sakha Republic), Russia.

[1] The river flows north of the Arctic Circle across a lonely, desolate area devoid of settlements.

Finally it joins the left bank of the Olenyok river 217 km (135 mi) upstream of its mouth.

[1][2] The river flows north of the Arctic Circle across swamps and forest-tundra.

Among the fish species found in the Bur lenok, muksun, nelma, omul, whitefish, taimen, grayling and pike deserve mention.