SS Galileo Galilei was an ocean liner built in 1963 by Cantieri Riuniti dell' Adriatico, Monfalcone, Italy for Lloyd Triestino's Italy–Australia service. In 1979, she was converted to a cruise ship, and subsequently sailed under the names Galileo and Meridian. She sank in the Strait of Malacca in 1999 as the Sun Vista.

Lloyd Triestino was a major shipping company, created in 1919 when the city of Trieste became part of Italy in the settlement after the First World War. It ran passenger services on ocean liners around the world. Seriously harmed by Second World War, in which it lost 68 ships, it recovered to run passenger services with new ships on routes as far as Australia. In 2006, with the business by then mainly container freight, the company's name was changed to Italia Marittima.