William Collins Whitney, American financier and politician, 31st United States Secretary of the Navy (d. 1904)

William Collins Whitney (July 5, 1841 – February 2, 1904) was an American political leader and financier and a prominent descendant of the John Whitney family. He served as Secretary of the Navy in the first administration of President Grover Cleveland from 1885 through 1889. A conservative reformer, he was considered a Bourbon Democrat.