Nordsee-Treene
Nordsee-Treene is an Amt in the district of Nordfriesland, in Schleswig-Holstein, Germany. Its seat is in Mildstedt. It was formed on 1 January 2008 from the former Ämter Friedrichstadt, Hattstedt, Nordstrand and Treene.
The Amt Nordsee-Treene consists of the following municipalities: