Fossnes or Valberg is a village in Sandefjord Municipality in Vestfold county, Norway.

The city of Tønsberg lies about 10 kilometres (6.2 mi) to the east.

The 0.36-square-kilometre (89-acre) village has a population (2022) of 650 and a population density of 1,793 inhabitants per square kilometre (4,640/sq mi).

[1] Arnadal Church is located on the north side of the village, along the river Merkadamselva.

This Vestfold location article is a stub.