Slangerup is a town in Frederikssund Municipality, about 30 km north-west of central Copenhagen, in the Capital Region of Denmark.

In the 13th century the town was the scene of activities involving both Bishop Absalon and Valdemar the Great.

Until 1 January 2007, Slangerup was also a municipality covering an area of 46 km² with a total population of 9,237 (2005).

This created a municipality with an area of 260 km² and a total population of ca.

Slangerup Speedway Klub is situated on the west side of the town at Hørup Skovvej 5A.