Eidsfoss is a village in Holmestrand Municipality in Vestfold county, Norway. The village is located at the southern end of the lake Eikeren, about 7 kilometres (4.3 mi) north of the village of Hof and about 20 kilometres (12 mi) southeast of the village of Vestfossen. The village itself is mostly located on a small isthmus of land between two lakes, with a river connecting them.

is a municipality in Vestfold county, Norway. It is located in the traditional district of Jarlsberg. The administrative centre of the municipality is the town of Holmestrand. Some of the notable villages in Holmestrand include Eidsfoss, Eikeberg, Gullhaug, Hof, Klever, Sande, Selvik, and Sundbyfoss.