Schleswigsch, ˈʃleːsvɪkʃ, is a Northern Low Saxon

Northern Low Saxon

Northern Low Saxon is a West Low German dialect.As such, it covers a great part of the West Low-German-speaking areas of northern Germany, with the exception of the border regions where Eastphalian and Westphalian are spoken...

 dialect spoken in Schleswig

Schleswig

Schleswig or South Jutland is a region covering the area about 60 km north and 70 km south of the border between Germany and Denmark; the territory has been divided between the two countries since 1920, with Northern Schleswig in Denmark and Southern Schleswig in Germany...

, in Germany

Germany

Germany , officially the Federal Republic of Germany , is a federal parliamentary republic in Europe. The country consists of 16 states while the capital and largest city is Berlin. Germany covers an area of 357,021 km2 and has a largely temperate seasonal climate...

 and Denmark

Denmark

Denmark is a Scandinavian country in Northern Europe. The countries of Denmark and Greenland, as well as the Faroe Islands, constitute the Kingdom of Denmark . It is the southernmost of the Nordic countries, southwest of Sweden and south of Norway, and bordered to the south by Germany. Denmark...

.

Schleswigsch mainly is based on an South Jutlandic substrate. Therefore it has some notable differences in pronounciation an grammar to it's southern neighbour dialects. The dialects on the west coast of Schleswig and some islands

North Frisian Islands

The North Frisian Islands are a group of islands in the Wadden Sea, a part of the North Sea, off the western coast of Schleswig-Holstein, Germany. The German islands are in the traditional region of North Frisia and are part of the Schleswig-Holstein Wadden Sea National Park and the Kreis of...

 show some North Frisian

North Frisian language

North Frisian is a minority language of Germany, spoken by about 10,000 people in North Frisia. The language is part of the larger group of the West Germanic Frisian languages.-Classification:...

influences.