Hillerød is an attractive small town in North Zealand, Denmark, with a population of just over 26,000. It is the seat of Hillerød Municipality.
The town is located on the Frederiksværk Canal, which links the Roskilde Fjord with the Isefjord, and is surrounded by forest and farmland. Hillerød is known for its historic buildings, including the Frederiksborg Palace, the main palace of the Danish Royal Family. The town is also home to the Hillerød Hospital and the Danish Army's Isefjord barracks.