RMS Orama was a UK steam ocean liner and Royal Mail Ship. She was launched in 1911 for the Orient Steam Navigation Company. When new, she was the largest liner sailing between Great Britain and Australia. In 1914 the British Admiralty requisitioned her and had her converted into an armed merchant cruiser (AMC). In 1915 she took part in the brief Battle of Más a Tierra off Chile. In 1917 a U-boat sank her in the Southwest Approaches. The name Orama comes from a hill in the County of Lytton, South Australia, which was originally "Oorama" and was shortened to "Orama".