Insjön is a locality situated in Leksand Municipality, Dalarna County, Sweden with 2,149 inhabitants in 2010. In 1899 Åhléns started out as the mail order business Åhlén& Holm. 19 years later, in 1918, the mail order firm Clas Ohlson was founded in Insjön. The sawmill Bergkvist sågen was also founded here.