| Country | Norway |
|---|---|
| Region | Southern Norway |
| County | Agder |
| District | Østre Agder |
| Municipality | Arendal |
| Time zone | CET (UTC+01:00) |
| Time zone (DST) | CEST (UTC+02:00) |
| Post Code | 4900 Tvedestrand |
| Coordinates | 58.5533°N 8.9404°E |
| Elevation | 17 m |
Vatnebu is a village in Arendal municipality in Agder county, Norway. The village is located on the mainland near the Skaggerak coast, about 2 kilometres (1.2 mi) southwest of the village of Kilsund on the nearby island of Tverrdalsøya and about 8 kilometres (5.0 mi) northeast of the village of Eydehavn.