The Smagne (French pronunciation: [smaɲ]) is a 50.3-kilometre-long (31.3 mi) river in the Vendée département, western France.

[1] Its source is near Bourseguin, a hamlet in Bourneau.

It is a left tributary of the Lay into which it flows between Bessay and Mareuil-sur-Lay-Dissais.

This Vendée geographical article is a stub.

You can help Wikipedia by expanding it.This article related to a river in France is a stub.