MS Estonia, previously MS Viking Sally (–1990),

MS Silja Star (–1991), and MS Wasa King (–1993),

was a cruise ferry built in 1979 at the German shipyard Meyer Werft in Papenburg.

The Estonia disaster occurred on September 28, 1994 between about 00:55 to 01:50 (UTC+2) as the ship was crossing the Baltic Sea, en route from Tallinn, Estonia, to Stockholm, Sweden. She was carrying 989 passengers and crew.

MS Estonia you can see in Sjöhistoriska museet.