| Official Name: | Dalen |
| Settlement Type: | Village |
| Pushpin Map: | Telemark#Norway |
| Pushpin Label Position: | top |
| Pushpin Map Caption: | Location of the village |
| Subdivision Type: | Country |
| Subdivision Name: | Norway |
| Subdivision Name1: | Eastern Norway |
| Subdivision Name2: | Telemark |
| Subdivision Type3: | District |
| Subdivision Name3: | Vest-Telemark |
| Subdivision Type4: | Municipality |
| Subdivision Name4: | Tokke Municipality |
| Utc Offset1: | +01:00 |
| Utc Offset1 Dst: | +02:00 |
| Area Total Km2: | 0.77 |
| Population As Of: | 2022 |
| Population Total: | 532 |
| Population Density Km2: | 688 |
| Postal Code Type: | Post Code |
| Postal Code: | 3880 Dalen |
| Coordinates: | 59.445°N 8.0049°W |
| Elevation M: | 75 |
| Elevation Footnotes: | [1] |
Dalen is the administrative centre of Tokke Municipality in Telemark county, Norway. The village is located at the flat river delta where the river Tokke flows into the west end of the lake Bandak. The village of Eidsborg lies about north of Dalen and the village of Åmdals Verk lies about to the south of Dalen.[2]
The 0.77km2 village has a population (2022) of 532 and a population density of .[3]
The village of Dalen is the westernmost endpoint of the Telemark Canal which runs from Dalen to the town of Skien to the southeast. Dalen became a tourist site due to all the canal traffic. The Dalen Hotel, built in 1894, is among the largest wooden buildings in Norway.
The Tokke Hydroelectric Power Station is a hydroelectric power station that is located on the east side of Dalen. The power station exploits the change in height from the lake Vinjevatn to the lake Bandak at Dalen. Statkraft's regional headquarters for Eastern Norway are located in Dalen. This headquarters oversees and manages 38 power stations in the region.[4] Dalen's population increased as the power systems were constructed during the 1950s, but then declined again after this finished by the 1960s.
The village is named Dalen. In Norwegian, the preposition used for locations can vary depending on the name. "In Dalen" is translated på Dalen—literally "on Dalen".[5]