HMS Agincourt was a 64-gun third-rate ship of the line of the Royal Navy, launched on 23 July 1796 at Blackwall Yard, London. She was bought from the East India Company in 1796, where she had been called Earl Talbot. Agincourt served in the navy's Egyptian campaign between 8 March 1801 and 2 September, which qualified her officers and crew for the clasp "Egypt" to the Naval General Service Medal that the Admiralty authorized in 1850 to all surviving claimants. She was decommissioned in 1809 and converted to a prison ship in 1812, before being broken up in 1814.