Zondereigen (Dutch pronunciation: [ˌzɔndərˈɛiɣə(n)]) is a village in the municipality of Baarle-Hertog, in the province of Antwerp, Belgium.

The village is located on the Belgian side of the border, but contains one Dutch enclave.

In 1843, the Netherlands and Belgium were unable to define the borders in Baarle, and smuggling became a major part of the economy of Zondereigen.

During World War I, the Wire of Death ran through the village to prevent escapes to the Netherlands.

In 1944, Zondereigen was the scene of severe fighting between the Germans and the Free Polish forces.