Onega River
 The Onega (Russian: Оне́га; Finnish: Äänisjoki) is a river in Kargopolsky Plesetsky and Onezhsky Districts of Arkhangelsk Oblast in Russia. The Onega connects Lake Lacha with the Onega Bay in the White Sea southwest of Arkhangelsk flowing in the northern direction. The discharge at the source is 74.1 cubic metres per second (2620 cu ft/s) and at the mouth is 505 cubic metres per second (17800 cu ft/s).