Gilgilçay (also, Gil’gil’chay) is a village and municipality in the Siazan Rayon of Azerbaijan.

The Gilgilchay defensive wall was built by the Sasanian Empire (488-531).

The defensive line were constructed using a combination of mud brick, stone blocks, and baked bricks, and stretched from the shore of the Caspian Sea to the Babadag mountains in the west.

[1] Not far from the Gilgilchay wall is the Shabran wall, located near Shabran village.

This Siazan Rayon location article is a stub.