Pyatkov Log (Russian: Пятков Лог) is a rural locality (a selo) and the administrative center of Pyatkovlogovsky Selsoviet of Volchikhinsky District, Altai Krai, Russia.

Pyatkov Log is located 39 km north of Volchikha (the district's administrative centre) by road.

Komintern is the nearest rural locality.

[3] The village is inhabited by Ukrainians and others.

This Volchikhinsky District location article is a stub.