SS Guglielmo Marconi was an Italian ocean liner launched on 24 September 1961 for Lloyd Triestino's Genoa—Sydney service. Her sister ship was SS Galileo Galilei. Guglielmo Marconi left Genoa on her maiden voyage on November 18th 1963. In 1976, Guglielmo Marconi was transferred to the Naples-Brazil-River Plate service of Italian Line.