| Eidselva | |
| Name Other: | Lundeelva |
| Pushpin Map: | Norway Telemark#Norway |
| Pushpin Map Caption: | Location of the river |
| Subdivision Type1: | Country |
| Subdivision Name1: | Norway |
| Subdivision Type2: | County |
| Subdivision Name2: | Telemark |
| Subdivision Type3: | Municipalities |
| Subdivision Name3: | Nome Municipality |
| Length: | 7.5km (04.7miles) |
| Source1: | Nomevatnet lake |
| Source1 Location: | Bjervamoen, Nome |
| Source1 Coordinates: | 59.3003°N 9.1664°W |
| Mouth: | Norsjø lake |
| Mouth Location: | Ulefoss, Nome |
| Mouth Coordinates: | 59.2864°N 9.2631°W |
| River System: | Skiensvassdraget |
Eidselva or Lundeelva is a river in Nome Municipality in Telemark county, Norway. The 7.5km (04.7miles) long river is part of Skiensvassdraget watershed and it is an important part of the Telemark Canal system. The river begins at the lake Nomevatnet, just east of the village of Bjervamoen and flows to the east and south into the large lake Norsjø at the village of Ulefoss.[1]
Throughout its course, there are six sluices (14 sluicegates), with a total rise of around 57m (187feet). In the river, there are four hydroelectric power stations: Eidsfoss, Vrangfoss, Ulefoss, and Aall-Ulefoss.