Dithmarschen (,
Low Saxon pronunciation: , archaic in English:
Ditmarsh,
Danish:
Ditmarsken,
Middle Latin:
Tedmarsgo) is a district in
Schleswig-Holstein, Germany. It is bounded by (from the north and clockwise) the districts of
Nordfriesland,
Schleswig-Flensburg,
Rendsburg-Eckernförde, and
Steinburg, by the state of
Lower Saxony (district of
Stade, from which it is separated by the
Elbe river), and by the
North Sea.