Petrovsk may refer to:
Petrovsk (Russian: Петровск) is the name of several inhabited localities in Russia.
Coordinates: 57°00′N 39°16′E / 57.00°N 39.27°E / 57.00; 39.27
Petrovskoye (Russian: Петро́вское) is an urban locality (a work settlement) in Rostovsky District of Yaroslavl Oblast, Russia, situated on a major highway leading from Moscow to the Russian North, about halfway between the towns of Rostov and Pereslavl-Zalessky. Population: 4,875 (2010 Census); 5,438 (2002 Census); 5,635 (1989 Census).
It was first mentioned in a chronicle at 1207. It was granted a town status and renamed Petrovsk in 1777. By the mid-20th century the settlement declined, was demoted in status to that of a rural locality and renamed Petrovskoye. It was granted urban-type settlement status in 1943.