Vyborg is a town in, and the administrative center of, Vyborgsky District in Leningrad Oblast, Russia. It lies on the Karelian Isthmus near the head of the Vyborg Bay, 130 km to the northwest of St. Petersburg and 38 km south of Russia's border with Finland, where the Saimaa Canal enters the Gulf of Finland. The population of Vyborg has developed as follows: 79,962; 79,224; 80,924.
Located in the boundary zone between the East Slavic/Russian and Finnish worlds, the town has changed hands several times in history, most recently in 1944 when the Soviet Union captured it from Finland during World War II.
The city hosts the Russian end of the 1,222 km Nord Stream gas pipeline, laid in 2011 and operated by a consortium led by Russia's Gazprom state hydrocarbons enterprise to pump 55 billion cubic meters of natural gas a year under the Baltic to Greifswald, Germany.