SS Duca d'Aosta was an Italian ocean liner for Navigazione Generale Italiana named after one of the Dukes of Aosta. Launched in 1908, she sailed between Italy and New York and South America for most of her career. During World War I she was employed as a troopship carrying United States troops to France as part of the United States Navy Cruiser and Transport Force. She was scrapped in 1929.