Олонецкая губерния
The Olonka () is a river in the Republic of Karelia, Russia. It gave the name to the town of Olonets by the river and eventually to the surrounding territory (Olonets Governorate, Olonets Krai, now Olonetsky District). It flows out of the reservoir Utozero and discharges into Lake Ladoga. It is long, and has a drainage basin of .