Three ships of the British Royal Navy have been named HMS Iron Duke after Arthur Wellesley, 1st Duke of Wellington, nicknamed the "Iron Duke". The name is also a pun, as the first ship so named was an ironclad.
HMS Iron Duke (1870) was a battleship launched in 1870, paid off in 1893, converted to as a coal hulk, and sold 1906 for scrap
HMS Iron Duke (1912) was the name-ship of a class of battleships, launched in 1912 and sold in 1946 for scrap. She is most famous for being the fleet flagship at the Battle of Jutland.
HMS Iron Duke (F234) is a Type 23 frigate launched in 1991
