Sälen [sæːlen] is a locality situated in Malung-Sälen Municipality, Dalarna County, Sweden with 652 inhabitants in 2010.
In the winter tens of thousands of tourists enter the area. Sälen is noted for hosting the start of Vasaloppet, the oldest (since 1922), longest (90 km), and largest cross country ski race in the world (over 15 000 participants in the main race only). It is also known for its many alpine ski resorts. Today Sälen has seven ski resorts. The oldest resort in Sälen is Högfjällshotellet which was built in 1937 and still is a good place for recreation, cross country skiing and downhill skiing. Newer resorts with steeper mountains are Hundfjället and Granfjället. Other resorts are Stöten, Lindvallen, Näsfjället, Tandådalen, and Kläppen. Today Lindvallen, Högfjället, Tandådalen and Hundfjället are a part of Skistar. Lindvallen and Högfjället are connected with ski lifts as well as Tandådalen with Hundfjället. The nearest airport is Mora Airport, 100 km away. The nearest international airport is Oslo Airport, 220 km away.
Popular rock band U2's video New Year's Day was filmed in Sälen in December 1982.