HMS Belliqueux (Eng. warlike) was a 64-gun third rate ship of the line of the Royal Navy, launched on 5 June 1780 at Blackwall Yard, London. She was named after the French ship Belliqueux captured in 1758. In 1781 Belliqueux took part at the Battle of Fort Royal, and in 1782 she was at the Battle of the Saintes. At the Action of 4 August 1800, Belliqueux captured the French frigate Concorde. Philip Dundas, Lieutenant-Governor of Penang died on-board on 8 April 1807, while the Belliqueux was in the Bay of Bengal. Belliqueux was employed as a prison ship from 1814, and was broken up in 1816.