Thomas Fremantle, English admiral and politician (b. 1765)
Vice-Admiral Sir Thomas Francis Fremantle, 1st Freiherr von Fremantle, (20 November 1765 – 19 December 1819) was a British naval officer in the Royal Navy whose accolades include three separate fleet actions, a close friendship with Lord Nelson, and a barony in Austria. He was the father of Admiral Sir Charles Fremantle, after whom the city Fremantle, in Western Australia, is named.