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. Duca d'Aosta, was built by Cantieri Navale Siciliani of Palermo, with steam engines provided by N. Odero & Co. of Sestri Ponente. Launched on 29 September 1908 for Navigazione Generale Italiana, she sailed on her maiden voyage from Genoa to Naples and New York on 9 November 1909. She continued on this service until 20 November 1912, when she was switched to an Italy–South American route. On 7 July 1914, Duca d'Aosta resumed Genoa–New York service. In May 1918, Duca d'Aosta was chartered as a United States troop transport and attached to the United States Navy Cruiser and Transport Force, and sailed on a total of five roundtrips before the Armistice. Sailing in her first troopship convoy at 18:30 on 10 May, Duca d'Aosta departed from Newport News, Virginia, with U.S. Navy transports , , , , , and , and the British steamer Kursk. The group rendezvoused with a similar group that left New York the same day, consisting of , , , British troopship , and Italian steamers and . American cruiser served as escort for the assembled ships, which were the 35th U.S. convoy of the war. On 20 May, the convoy sighted and fired on a "submarine" that turned out to be a bucket; the next day escort Frederick left the convoy after being relieved by nine destroyers. Three days later the convoy sighted land at 06:30 and anchored at Brest that afternoon. Duca d'Aosta safely arrived back in the U.S. on 5 June. Fate, however, was not as kind to former convoy mates President Lincoln and Dwinsk. On their return journeys they were sunk by German submarines U-90 and U-151, respectively.