HMS Ardent was a 64-gun third rate ship of the line of the Royal Navy, launched on 9 April 1796 at Northfleet. She had been designed and laid down for the Honourable East India Company, but was purchased by the Navy after the outbreak of the French Revolutionary War. In 1801, Ardent took part in the Battle of Copenhagen. In 1808 she was assigned to convoy duty, escorting British merchantmen between The Nore and Gothenburg. She was placed on harbour service in 1812, and broken up in 1824.