HMAT Warilda (His Majesty's Australian Transport) was a 7713-ton vessel, built by William Beardmore and Company in Glasgow as the SS Warilda for the Adelaide Steamship Company.

[citation needed] On 3 August 1918, HMAT Warilda was transporting wounded soldiers from Le Havre, France to Southampton when she was torpedoed by the German submarine UC-49.

[10] The ship sank in about two hours, and of the 801 persons on board, 123 died due to the sinking.

[1] The Deputy Chief Controller of the Queen Mary's Army Auxiliary Corp, Mrs Violet Long, lost her life in this action.

[11] Among the survivors was her commander, Captain Sim, who was later awarded the OBE by King George V.[12] Her wreck lies in the English Channel.