Priozersk (, known before 1948 in Finnish as is a town and the administrative center of Priozersky District in Leningrad Oblast, Russia, located at the northwestern shore of Lake Ladoga, at the estuary of the northern armlet of the Vuoksi River on the Karelian Isthmus. It is served by a station of the same name on the St. Petersburg—Khiytola railway. Population:

The main landmark of Priozersk, the Korela Fortress, has historically been the center for the Karelians of the Karelian Isthmus and from time to time the northwestern outpost of the realm of the Russians or the eastern outpost of the realm of the Swedes.