Estlan (Russian: Эстлань) is a rural locality (a settlement) in Oktyabrsky Selsoviet, Kulundinsky District, Altai Krai, Russia.

Estlan lies in the Kulunda Steppe, near lake Shchekulduk to the east.

[3][4] It is located 14 km southwest of Kulunda (the district's administrative centre) by road.

Novopetrovka is the nearest rural locality.

This Kulundinsky District location article is a stub.