Petrovsk

Petrovsk may refer to:


 * Petrovsk, Saratov Oblast, a town in Saratov Oblast, Russia, on the Medveditsa River
 * Petrovsk (inhabited locality), several places in Russia
 * Petrovsk (air base), an air base in Saratov Oblast, Russia
 * Petrovsk-Port, name of the city of Makhachkala in the Republic of Dagestan, Russia, in 1857–1921