Sætre is a village in Asker municipality in Akershus county, Norway. Sætre is situated on the western bank of the Inner Oslofjord, approximately 45 kilometers south of Oslo.

Hurum was a municipality in Buskerud county, Norway. As of 1 January 2020 Hurum has merged with the municipalities of Røyken and Asker to form the new Asker Municipality located in the newly formed Viken county. The administrative centre of the municipality is the village Sætre. The municipality of Hurum was established on 1 January 1838. 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.