Several ships of the Royal Navy have been named HMS Rupert or derivatives of the name, after Prince Rupert of the Rhine, son of Frederick V, Elector Palatine and a famous Royalist cavalry commander during the English Civil War.
HMS Rupert of 1666 was a third-rate ship of the line which served in the navy for 103 years.HMS Rupert's Prize of 1692 was a sixth-rate ship captured by the above battleship during the Nine Years' War.HMS Rupert's Prize of 1741 was a sloop captured by the above battleship during the War of Jenkins' Ear.HMS Rupert of 1872 was a turret ram battleship prototype sold in 1907.HMS Prince Rupert of 1915 was a First World War Royal Navy Lord Clive-class monitor.HMS Rupert (K561) of 1943 was a Captain-class frigate purchased from the United States during World War II.