Euregio the wadden is the association of all municipalities and cities on the islands in the European Wadden Sea area of the North Sea.

The head of the organisation is the Euregio-board, which consists of two representatives for each of the four political regions:

Danish Islands (DK)
North Frisian Islands (D)
East Frisian Islands (D)
West Frisian Islands (NL)

A Trilateral Wadden Sea Conference is held every two years to bring together all Euregio members, who represent the 85.000 inhabitants from the Danish, German and Dutch islands.

The Euregio Common Office is located at the North Frisian Island Föhr - in the Regionalbüro Uthlande, which was established by the North Frisian organisation Insel- und Halligkonferenz.