The sixth HMS Britannia of the British Royal Navy was a pre-dreadnought battleship of the King Edward VII class. She was named after Britannia, the Latin name of Great Britain under Roman rule. After commissioning in September 1906, she served briefly with the Atlantic and Channel Fleets before joining the Home Fleet. In 1912, she, along with her sister ships of the King Edward VII class, was assigned to the 3rd Battle Squadron but in June 1913, she returned to duties with the Home Fleet.