Admiral Sir Percy Lockhart Harnam Noble (16 January 1880 – 25 July 1955) was a Royal Navy officer who served in both World Wars.

Noble rose to the rank of admiral and was Commander-in-Chief, Western Approaches for two crucial years during the Second World War, before being posted to the United States as Head of the RN Admiralty Delegation.

The son of an Indian Army officer, Colonel Charles Noble and Anne née Hay,[1] he was educated at Edinburgh Academy,[2] before being commissioned in the Royal Navy on 15 January 1894.

[3] On his return to London, Admiral Noble was appointed Commander-in-Chief, Western Approaches,[3] headquartered at Derby House, Liverpool, from February 1941 to November 1942.

Noble was, although not forced, certainly pushed out of Western Approaches to make room for Admiral Sir Max Horton, whose combative personality and experience in the submarine service made him the ideal candidate in the eyes of some to take the war to the U-boats.