Birka Line is an Ålandian shipping company that operates a cruise ship on the Baltic Sea with Stockholm as the starting point under the name Birka Cruises. Birka Line has a cargo-shipping subsidiary, Birka Cargo. During the 1970s the company was often marketed as Ålandslinjen. Since May 2007 Birka Line has been a daughter company of Rederiaktiebolaget Eckerö.