Admiral Sir Albert Percy Addison KBE, CB, CMG (8 November 1875 – 13 November 1952) was a senior officer in the Royal Navy. He was the Rear Admiral Commanding His Majesty's Australian Fleet between 30 April 1922 and 30 April 1924. During the First World War he was recognised by the British Admiralty as an authority on submarines, and his knowledge of that class of ship was used extensively.