Northern Schleswig (Nordschleswig) is the German language name on South Jutland, the geographical area covering the southernmost 30 kilometers of the Jutland Peninsula. The area has formerly been a part of the Duchy of Schleswig (also called Sønderjylland in Danish), that was annexed to Prussia after the Second War of Schleswig (1864), but ceded to Denmark after a plebiscite in 1920.
Today an ethnic German minority lives in South Jutland.
The major towns are Sønderborg, Padborg, Tønder, Aabenraa and Haderslev.