| Official Name: | Eiken |
| 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 Name3: | Lister |
| Subdivision Type4: | Municipality |
| Subdivision Name4: | Hægebostad |
| Utc Offset1: | +01:00 |
| Utc Offset1 Dst: | +02:00 |
| Postal Code Type: | Post Code |
| Postal Code: | 4596 Eiken |
| Elevation M: | 189 |
| Elevation Footnotes: | [1] |
| Coordinates: | 58.4786°N 7.2083°W |
Eiken is a village in Hægebostad municipality in Agder county, Norway. The village is located on the northern shore of the lake Lygne, about north of the municipal centre of Tingvatn. The village sits near the northern end of the Lyngdalen valley, about southeast of the village of Haddeland.
There is some industry and agriculture as well as a good amount of tourism. The Sørlandets Rehabiliteringssenter Eiken (Southern Norway Rehabilitation Centre) is located in Eiken and run by the Southern and Eastern Norway Regional Health Authority. The village is also the site of Eiken Church which serves all of northern Hægebostad. From 1916 until 1963, the village was the administrative centre of the old municipality of Eiken.[2]
The village (originally the parish) is named after the old Eiken farm (Norse, Old: Æke). The name of the farm means "oak tree".[3]