MS Marella Spirit was a cruise ship owned by Holland America Line and operated under charter by the United Kingdom-based Marella Cruises. She was built in 1983 at the Chantiers de l'Atlantique shipyard in France for Holland America Line as MS Nieuw Amsterdam. Between 2000 and 2001 she sailed for United States Lines, a subsidiary of American Classic Voyages, as MS Patriot. In 2002 she returned under Holland America Line ownership and reverted to the name Nieuw Amsterdam, but was not used in active service. During the same year she was chartered to Louis Cruise Lines, who in turn sub-chartered the ship to Thomson Cruises, with whom she entered service under MS Thomson Spirit in 2003.