Herefoss is a village in Birkenes municipality in Agder county, Norway.

The village is located on the northeastern end of the Herefossfjorden which is a large lake on the river Tovdalselva.

The village was the administrative centre of the old municipality of Herefoss which existed from 1838 to 1967 when it was merged into Birkenes.

The first documented occurrence of the name Hegrafoss stems from 1487, and the Old Norse form of the name must then have been Hegrafors.

Herefoss Church was consecrated by Bishop Jacob von der Lippe in 1865.