Eleven ships of the Royal Navy have borne the name HMS Porpoise, after the marine mammal, the porpoise:
HMS Porpoise (1777) was a 16-gun sloop, formerly Annapolis, purchased in 1777. She was renamed HMS Firebrand in 1778 and was burnt off Falmouth in 1781.
HMS Porpoise (1780) was a 14-gun storeship purchased in 1780 and sold in 1783.
HMS Porpoise (1798) was also a storeship, launched in 1798, renamed HMS Diligent in 1801 and sold in 1802.
HMS Porpoise (1804) was a 10-gun storeship, formerly Lord Melville, launched in 1804. The Admiralty purchased her that same year and sold her in 1816. As the mercantile Lord Melville she made two voyages to Australia transporting convicts; he was last listed in 1820.
HMS Porpoise (1855) was a mortar vessel launched in 1855. She was renamed MV 8 later that year and hulked in 1866, before being sold in 1885.
HMS Porpoise (1856) was a wood screw Albacore-classgunboat, launched in 1856 and broken up in 1864.
This article includes a list of ships with the same or similar names. If an internal link for a specific ship led you here, you may wish to change the link to point directly to the intended ship article, if one exists.