Hurum is a municipality in Buskerud county, Norway. The administrative centre of the municipality is the village Klokkarstua. The municipality of Hurum was established on 1 January 1838 (see formannskapsdistrikt). The small village of Holmsbu was granted town status in 1847, but it did not become a municipality of its own. It lost its town status on 1 January 1964.
Hurum was once suggested as the location for the new national airport of Norway. The plan was however abandoned, and the main airport is now situated at Gardermoen in Akershus county.
The coat-of-arms is from modern times. They were granted on 2 February 1979. The arms show two blue wavy lines on a silver background. This was chosen because the municipality is on a peninsula between two fjords: Oslofjord and Drammensfjord. At the same Time the arms are based on the arms of the Huitfeldt family, who played a major role in the local history. The family used a single bend as arms.