The SS Utopia was a British steamer built in 1874 by the Robert Duncan & Co of Glasgow. On 17 March 1891 she sank in just 20 minutes in the Bay of Gibraltar following a collision with the battleship HMS Anson. In the sinking, 562 of the more than 880 passengers embarked perished or were missing, mainly Italian emigrants bound for the United States of America, in addition to the crew members and two rescuers of the HMS Immortalité. Together with the sinking of the steamers Sirio and Principessa Mafalda, it was one of the most serious naval disasters in the history of Italian emigration.