SS Themistocles was a UK steam ocean liner and refrigerated cargo ship.

This ship should not be confused with the 6,045 GRT transatlantic liner Moraitis that was launched in 1907 in England for Greek owners, renamed Themistocles in 1908 and scrapped in 1933.

[1] Harland and Wolff built Themistocles on its slipway number seven[2] in Belfast, launching her on 22 September 1910 and completing her on 12 January 1911.

[5] Themistocles, like Pericles, had twin screws driven by quadruple-expansion steam engines whose combined power output was rated at 1,075 NHP.

[5] On 20 July 1931 the Royal Mail Case opened at the Old Bailey, which led to the collapse of White Star Line's parent company.

[16] In 1937 Shaw, Savill & Albion transferred Themistocles' ownership to the Norfolk and North American Steamship Co Ltd, but retained direct management of the ship.

[17] Themistocles maintained her usual route via Cape Town until 4 June 1941, when she left Sydney for Liverpool via Wellington, New Zealand, the Panama Canal and Halifax, Nova Scotia instead.

She left Liverpool on 27 August 1941 with Convoy ON 10, called at Kingston, Jamaica on 19 September and reached Melbourne on 24 October.

[17] Themistocles then resumed her route via Cape Town until 21 February 1943, when she again left Sydney for Liverpool via New Zealand, the Panama Canal and Halifax.

[17] On her next outward voyage Themistocles called at Saint Helena on 22–23 November 1944, then continued via South Africa and Australia to Auckland, where she arrived on 27 January 1945.

She called at Hampton Roads on 5 June, passed through the Panama Canal, and reached Auckland on 9 July.

[18] On 24 August 1947 Themistocles arrived at Dalmuir on the River Clyde to be scrapped by WH Arnott, Young and Co. Demolition was completed at Troon on the Ayrshire coast.