Admiral Philip Wylie Dumas, CB, CVO (9 March 1868 â 11 December 1948) was a British Royal Navy officer. He was a noted advocate of the use of oil and of the internal combustion engine for naval vessels.
During the First World War, Dumas held a series of appointments at the Admiralty until 1917, when he was given command of HMS Agamemnon. He was promoted to rear-admiral in 1918 and retired. He was promoted on the retired list to vice-admiral in 1924 and to admiral on 21 January 1928.