Admiral Sir John Gore, KCB (9 February 1772, County Kilkenny, Ireland – 21 August 1836, Datchet, Buckinghamshire) was a British naval commander of the 18th and 19th centuries.

Gore joined the Royal Navy in August 1781, as a captain's servant, and would have served as a midshipman, before gaining promotion to lieutenant on 26 November 1789 and commander on 24 May 1794.

He fitted her out and sailed her to Malta where he negotiated with the Grand Master of the Knights Hospitaller Emmanuel de Rohan-Polduc for seamen, supplies, and the like.

[1] When in command of HMS Triton, he took part in the successful Action of 16 October 1799, in which two Spanish frigates were captured and more than 2 million silver dollars taken.

The couple had four children:[1] In fiction, he appears in CS Forester's Hornblower and the Hotspur and in MC Muir's Admiralty Orders as the Medusa's captain.