The Kena (Russian: Кена) is a river in Plesetsky District of Arkhangelsk Oblast in Russia.

The source of the Kena is in the eastern part of the Lake Kenozero, in the village of Pershlakhta.

Several kilometers in the upper course of the Kena are located in Kenozersky National Park.

The whole valley of the Kena is populated, with about a dozen villages located at both banks of the river.

On the left bank, there is a road with regular bus service, connecting Kenozyorsky National Park with the valley of the Onega and eventually with Plesetsk and Kargopol.