Dagebüll (Mooring North Frisian: Doogebel; Danish:Dagebøl) is a municipality located at the west coast of Schleswig-Holstein in the Nordfriesland district, Germany. Today's Dagebüll was created in 1978 as a merger of the municipalities of Fahretoft, Juliane-Marien-Koog and Waygaard. Dagebüll used to be a Hallig, the oldest houses were built on artificial dwelling hills which in parts can still be seen today. In 1704 the area was secured by sea dikes.