The Orlovka (Russian: Орловка) is a river in Tomsk Oblast with its origins in Krasnoyarsk Krai in Russia, a right tributary of the Ket (Ob basin). The river is 327 kilometres (203 mi) long. The area of its basin is 9,010 square kilometres (3,480 sq mi). The Orlovka originates from Lake Burgunku and flows over the West Siberian Plain. It freezes up in mid-October or early November and remains icebound until late April or May.

This article includes content derived from the Great Soviet Encyclopedia, 1969–1978, which is partially in the public domain.