Nordfriesland, also known as North Frisia, is the northernmost district of Germany, part of the state of Schleswig-Holstein. It includes almost all of traditional North Frisia, as well as adjacent parts of the Schleswig Geest to the east and Stapelholm to the south, and is bounded by the districts of Schleswig-Flensburg and Dithmarschen, the North Sea and the Danish county of South Jutland. The district is called Kreis Nordfriesland in German, Kreis Noordfreesland in Low German, Kris Nordfraschlönj in Mooring North Frisian, Kreis Nuurdfresklun in Fering North Frisian and Nordfrislands amt in Danish.

Husum is the capital of the Kreis (district) Nordfriesland in Schleswig-Holstein, Germany. The town was the birthplace of the novelist Theodor Storm, who coined the epithet "the grey town by the sea". It is also the home of the annual international piano festival Raritäten der Klaviermusik founded in 1986.