William Banks Caperton (June 30, 1855 – December 12, 1941) was an admiral of the United States Navy. He held major posts ashore and afloat, chief of which were commanding the naval forces intervening in Haiti (1915–16) and Santo Domingo (1916), and Commander-in-Chief, Pacific Fleet, from July 28, 1916 to April 30, 1919. He served actively until November 12, 1921.