A number of ships of the Royal Navy have borne the name HMS ''Diligence''. * was an eight-gun sloop built in 1756, renamed ''Comet'' and converted to a fireship in 1779, but sold that year. * was an 18-gun brig sloop. Originally HMS ''Spencer'', she was renamed HMS ''Diligence'' before being launched in 1795. She was lost in 1800. * was the former mercantile ''Union'', purchased in 1801 and sold in 1812. * was part of Inglefield’s 1854 Arctic expedition. *HMS ''Diligence'' was a 17-gun laid down in 1861 but cancelled on 12 December 1863. * was a destroyer depot ship, formerly the civilian ''Tabaristan'', purchased in October 1915. She was scrapped in 1926. * was a repair ship, formerly USS ''Diligence'' (BAR-18) was transferred under terms of the Lend-lease Act to the Royal Navy and returned to the US Navy in 1946. * was a base at Hythe, Hampshire for the minesweepers and motor torpedo boats of the reserve fleet, which opened in 1953. * fleet repair ship of the Royal Fleet Auxiliary, formerly the civilian MV ''Stena Inspector'', purchased in October 1983.

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