Six ships and one submarine of the Royal Navy have borne the name HMS Dreadnought in the expectation that they would "dread nought", i.e. "fear nothing, but God". The 1906 ship was one of the Royal Navy's most famous vessels.
The seventh HMS Dreadnought (S101) was the United Kingdom's first nuclear-powered submarine, built by Vickers Armstrong at Barrow-in-Furness.
HMS Dreadnought was a second-rate of 98 guns of the Royal Navy. She was launched at Portsmouth at midday Saturday, on 13 May 1801, after 13 years on the stocks. She was the first man of war launched since the Act of Union 1800 created the United Kingdom of Great Britain and Ireland, and at her head displayed a lion couchant on a scroll bearing the Royal arms as emblazoned on the Standard.
The fifth HMS Dreadnought of the British Royal Navy was a turret ironclad battleship built at Pembroke Dockyard, Wales.
The sixth HMS Dreadnought of the Royal Navy was a revolutionary battleship which entered service in 1906. So advanced was Dreadnought that her name became a generic term for modern battleships, whilst the ships she made obsolete were known as "pre-dreadnoughts". Her introduction helped spark off a major naval arms race as navies around the world rushed to match her, particularly the German navy in the build up to the First World War.