Haderslev (German: About this sound Hadersleben ) is a Danish town of Region of Southern Denmark with a population of 21,574 (1 January 2014). It is the main town and the administrative seat of Haderslev Municipality and is situated in the eastern part of Southern Jutland. Haderslev is home of Sønderjyske, which is an association football team that plays in the Danish Superliga for the 2015-16 season.