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.