The SS Parthia (1870–1956) was an iron-hulled transatlantic ocean liner built for the Cunard Line by William Denny and Brothers in Dumbarton, Scotland. Her sister ships were the Abyssinia and Algeria. Unlike her two sisters, Parthia was smaller, built in a different shipyard and had a slightly different funnel arrangement. The Parthia was retired by Cunard in 1883 and sold to John Elder & Co., who subsequently transferred her to the Guion Line. After serving with the Guion Line and operating on trans-Pacific routes with the Canadian Pacific Railway Company, she was refitted and renamed Victoria.