Rear-Admiral Sir Harry Hampson Stileman, KBE (7 August 1860 – 28 October 1938) was a British Royal Navy officer who also served as Director of Dr Barnardo's Homes from 1920 to 1923.
Stileman was the son of Major-General William Stileman of the Indian Army and the brother of Charles Stileman, later Bishop in Persia. He joined the Royal Navy as a Naval Cadet in January 1874 and was promoted Midshipman in March 1876, being appointed to the screw sloop HMS Dryad on the North American Station. In 1877 he joined the ironclad screw frigate HMS Shannon on the China Station. He was commissioned Sub-Lieutenant in 1880. In July 1882 he joined the paddle-wheel despatch vessel HMS Salamis and served in the 1882 Egyptian Campaign.
Until 1888 he successively served in the despatch vessel HMS Lively, the battleship HMS Temeraire and the gunboat HMS Condor with the Mediterranean Fleet, and then the cruiser HMS Rover in the Training Squadron. From 1888 to 1898 he was first lieutenant of successively the screw sloop HMS Mariner on the East Indies Station, the corvette HMS Hyacinth in the Pacific, the battleship HMS Collingwood with the Home Fleet, and the battleship HMS Royal Oak in the Mediterranean.