Over Jerstal (German: Ober Jersdal) is a small town, with a population of 1,097 (1 January 2025), in Haderslev Municipality, Region of Southern Denmark in Denmark. It is located 22 km northwest of Aabenraa, 7 km south of Vojens and 17 km southwest of Haderslev.

A collection of passage graves from the Neolithic and Bronze Age, approx. 3300 B.C, are located 1 km north of the town.