Sosnovy Bor is a town in Leningrad Oblast, Russia, situated on the Koporye Bay of the Gulf of Finland, 81 kilometers (50 mi) west of St. Petersburg. The town of Sosnovy Bor is surrounded by Lomonosovsky District. Population: 65,788 (2010 Russian census); 66,132 (2002 Census); 55,800 (1989 Soviet census).

Leningrad Oblast is a federal subject of Russia. The oblast has an area of 84,500 square kilometres (32,600 sq mi) and a population of 2,000,997 ; up from 1,716,868 recorded in the 2010 Census. Leningrad Oblast is highly industrialized. Its administrative center and largest city is Gatchina.