Porzhenka (Russian: Порженка) is a river, 8 kilometres (5 mi) long, within the Dvina–Pechora Watershed District^[1] in Russia. The river originates in the Bolshoye Porzhenskoye Lake and flows into Lake Kenozero, which is drained by the Kena towards the Onega. The Porzhensky Pogost is nearby.