Starup () is a town and satellite community to Haderslev, with a population of 2,575 (1 January 2025), on the southern side of the narrow inlet of Haderslev Fjord. It is located 3 km east of Haderslev in Haderslev Municipality, Region of Southern Denmark in Denmark.
Sønder Starup Church is located on the northern outskirts of the town at the shore of Haderslev Fjord.