Kastrup is a village in Haderslev Municipality, in the region of Southern Denmark, Denmark. Kastrup lies at 36 m above sea level. The nearest city is Haderslev, 26 km to the east. Among the landmarks around are Ribe Cathedral (21 km), Riberhus (22 km) and Ribe Kunstmuseum (21 km). Among the natural features are Knivsbjerg (27 km).