Alleen or Lyngdal is a town which is the administrative centre of the municipal of Lyngdal in Vest-Agder county, Norway. It lies along the east side of the river Lygna, just north of the head of the Rosfjorden and northeast of the head of the Lyngdalsfjorden. The small villages of Skomrak and Svenevik both lie just south of the town and the small farming area of Hæåk lies about 8 kilometres (5.0 mi) to the northwest.