Lesogorsky (Russian: Лесого́рский; Finnish: Jääski) is an urban locality (an urban-type settlement) in Vyborgsky District of Leningrad Oblast, located on the left bank of the Vuoksi River on the Karelian Isthmus near the Russia–Finland border, and a station of the Kamennogorsk–Svetogorsk–Imatra railway. Population: 3,273 (2010 Census); 3,004 (2002 Census); 3,744 (1989 Census). Municipally Lesogorsky, together with the town of Svetogorsk, forms Svetogorskoye Urban Settlement of Vyborgsky Municipal District.