Mandalen should not be confused with Måndalen.
| Mandalen | |
| Map: | Agder#Norway |
| Label Position: | bottom |
| Location: | Agder, Norway |
| Direction: | North-South |
| Type: | River valley |
| River: | Mandalselva |
| Towns: | Mandal |
| Coordinates: | 58.38°N 7.5278°W |
Mandalen is a river valley in Agder county, Norway. The 75km (47miles) long valley runs from the lake Øre in Åseral municipality south through the municipality of Lindesnes and it ends at the sea at the town of Mandal in the south. The river Mandalselva runs through the valley. The side valleys are Ljoslandsdalen and Lognadalen.[1]