| Official Name: | Herefoss |
| Settlement Type: | Village |
| Pushpin Map: | Agder#Norway |
| Pushpin Label Position: | top |
| Pushpin Map Caption: | Location of the village |
| Subdivision Type: | Country |
| Subdivision Name: | Norway |
| Subdivision Name1: | Southern Norway |
| Subdivision Name2: | Agder |
| Subdivision Type3: | District |
| Subdivision Type4: | Municipality |
| Subdivision Name4: | Birkenes |
| Utc Offset1: | +01:00 |
| Utc Offset1 Dst: | +02:00 |
| Postal Code Type: | Post Code |
| Postal Code: | 4766 Herefoss |
| Coordinates: | 58.5243°N 8.3511°W |
| Elevation M: | 80 |
| Elevation Footnotes: | [1] |
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 Norwegian National Road 41 runs through the village connecting it to Søre Herefoss, about to the south, and to Hynnekleiv in Froland, about to the north. The lake Uldalsåna lies about to the northwest.
Herefoss used to have a train station along the Sørlandsbanen railway line. It was opened on 22 June 1938, but the use was discontinued in 1989. The station building is still standing. The village was the administrative centre of the old municipality of Herefoss which existed from 1838 to 1967 when it was merged into Birkenes. Herefoss Church is located in the village.
The first documented occurrence of the name Hegrafoss stems from 1487, and the Old Norse form of the name must then have been Hegrafors. The first element is the genitive case of the bird name (grey heron; the same as the local river name, Hegra), and the last element is which means 'waterfall'. Later, it was spelled Heirefos and ultimately Herefoss.[2]
Herefoss was historically the seat of public officials in this region. The (bailiff) resided here from 1680 to 1820, and the (district judge) also lived here from 1724 to 1852. Herefoss was established as a in 1875. Herefoss Church was consecrated by Bishop Jacob von der Lippe in 1865.[3]