Petrovka (Russian: Петровка) is a rural locality (a selo) in Novopoltavsky Selsoviet, Klyuchevsky District, Altai Krai, Russia.

Petrovka lies in the Kulunda Steppe, near lake Krivaya Puchina to the east.

[3][4] It is located 28 km north of Klyuchi (the district's administrative centre) by road.

Novopoltava is the nearest rural locality.

This Klyuchevsky District location article is a stub.