Sergeyevka (Russian: Сергеевка) is a rural locality (a selo) in Zlatopolinsky Selsoviet, Kulundinsky District, Altai Krai, Russia.

Sergeyevka lies in the Kulunda Steppe, 5.5 kilometers (3.4 mi) to the west of lake Dzhira.

[3][4] It is located 34 kilometers (21 mi) northeast of Kulunda (the district's administrative centre) by road.

Zlatopol is the nearest rural locality.

This Kulundinsky District location article is a stub.