Four ships of the Royal Navy have been named HMS Formidable with a fifth, the French Formidable, renamed HMS Ham after being captured and recommissioned; a sixth has been announced:
HMS Ham (1759) was the 80-gun second rate captured from the French at the Battle of Quiberon Bay in 1759. Broken up in 1768. was a second rate; initially of 90 guns, later increased to 98; launched in 1777. She fought at the Battle of Ushant and the Battle of the Saintes, was converted to a 74-gun third rate in 1813, and broken up later that year. was an 84-gun second rate launched in 1825. She was lent as a training ship in 1869 and was sold in 1906. was a predreadnought battleship launched in 1898 and torpedoed and sunk in 1915. was an launched in 1939 and sold for scrap in 1953.
Battle honours Ships named Formidable have earned the following battle honours: The Saints 1782 Matapan 1941 Crete 1941 Mediterranean 1941 North Africa 1942–43 Sicily 1943 Salerno 1943 Norway 1944 Okinawa 1945 Japan 1945
See also
, a former French ship named Formidable.