HMS Triumph was a 74-gun third rate ship of the line of the Royal Navy, launched on 3 March 1764 at Woolwich. In 1797, she took part in the Battle of Camperdown, and in 1805 Triumph was part of Admiral Calder's fleet at the Battle of Cape Finisterre. In 1810 Triumph and Phipps, salvaged a large load of elemental mercury from a wrecked Spanish vessel near Cadiz, Spain. The bladders containing the mercury soon ruptured and the crew suffered from mercury vapour poisoning. Triumph was on harbour service from 1813, but was not broken up until 1850.