Fleet Admiral Ernest Joseph King (23 November 1878 – 25 June 1956) was Commander in Chief, United States Fleet (CINCUS) and Chief of Naval Operations (COMINCH-CNO) during World War II. As COMINCH, he directed the United States Navy's operations, planning, and administration and was a member of the Joint Chiefs of Staff. He was the U.S. Navy's second most senior officer after Fleet Admiral William D. Leahy, and the second admiral to be promoted to five star rank. As COMINCH, he served under Secretary of the Navy Frank Knox and later under James Forrestal.