Undal
| Undal Municipality Undal herred | |
|---|---|
| Vest-Agder within Norway | |
| Undal within Vest-Agder | |
| Coordinates: 58°17′07″N 07°21′21″E / 58.28528°N 7.35583°E | |
| Country | Norway | 
| County | Vest-Agder | 
| District | Sørlandet | 
| Established | 1 Jan 1838 | 
| • Created as | Formannskapsdistrikt | 
| Disestablished | 1 Jan 1845 | 
| • Succeeded by | Nordre Undal and Søndre Undal municipalities | 
| Area  (upon dissolution) | |
|  • Total | 368 km2 (142 sq mi) | 
| Population  (1845) | |
|  • Total | 4,695 | 
| • Density | 13/km2 (33/sq mi) | 
| Time zone | UTC+01:00 (CET) | 
| • Summer (DST) | UTC+02:00 (CEST) | 
| ISO 3166 code | NO-1027 | 
Undal is a former municipality that was located in the old Vest-Agder county in Norway. The 368-square-kilometre (142 sq mi) municipality existed from 1838 until its dissolution in 1845. It encompassed parts of the present-day municipalities of Lyngdal and Lindesnes. The municipality encompassed most of the Audnedalen valley which follows the river Audna southwards to the sea.