William Haynes

William, Willie, or Billy Haynes may refer to:

William E. Haynes, United States Representative for Ohio
William S. Haynes, American silversmith and flute maker
William Haynes (swimmer), British swimmer
Willie Haynes, American baseball player
William Joseph Haynes Jr., United States federal judge
Billy Jack Haynes, American professional wrestler
William J. Haynes II, American lawyer, General Counsel of the U.S. Department of Defense
William Haynes (comedian), comedian and internet personality