South Jutland (Danish: Sydjylland) is one of the 12 multi-member constituencies of the Folketing, the national legislature of Denmark. The constituency was established in 2007 following the public administration structural reform. It consists of the municipalities of Aabenraa, Billund, Esbjerg, Fanø, Fredericia, Haderslev, Kolding, Sønderborg, Tønder, Varde, Vejen and Vejle. The constituency currently elects 18 of the 179 members of the Folketing using the open party-list proportional representation electoral system. At the 2019 general election it had 528,108 registered electors.