HMS Cynthia

Five ships of the Royal Navy have borne the name HMS Cynthia. A sixth was planned but never completed:

• HMS Cynthia (1796) was an 18-gun sloop launched in 1796 and broken up in 1809.
• HMS Cynthia (1810) was a 16-gun sloop listed between 1810 and 1815.
• HMS Cynthia (1826) was a 6-gun packet brig purchased in 1826 and wrecked off Barbados on 6 June 1827.
• HMS Cynthia was to have been a Rosario-class wooden screw sloop. She was laid down in 1861 but cancelled in 1863.
• HMS Cynthia (1898) was a destroyer launched in 1898, classified as a D-class destroyer in 1913 and sold in 1920.
• HMS Cynthia (J345) was a Catherine-class minesweeper launched in 1943 and transferred to the Royal Navy under lend-lease. She was returned to the US Navy in 1947.