The Onega Canal (Russian: Онежский канал) is a canal that runs along the southern banks of Lake Onega in Vytegorsky District of Vologda Oblast and Podporozhsky District of Leningrad Oblasts in Russia.

It was built 1818–1820 and 1845–1852 as a part of Mariinsk Canal System, to allow small riverboats to avoid Lake Onega, where storms are frequent and where many boats had perished through the centuries.

[2] At the mouth of the canal, in the selo of Voznesenye, a memorial obelisk has been erected.

[2] Onezhsky Canal was not reconstructed and became too shallow for larger boats.

Two rivers, Vozheroksa and Oshta, tributaries of Lake Onega, cross the canal.