William Hanna (disambiguation)

William Hanna (1910–2001) was an American animator, director, producer and cartoon artist.

William or Bill Hanna may also refer to:
 * William B. Hanna (1866–1930), American sportswriter
 * William S. Hanna (1923–1994), Howard County Maryland politician
 * William T. Hanna (1920–1942), U.S. Marine
 * William Hanna (minister) (1808–1882), Scottish theological writer and biographer
 * William Hanna (railroad president) (born 1827), namesake of Hanna City, Illinois, U.S.
 * William Fahmy Hanna (born 1928), Egyptian Olympic athlete
 * William John Hanna (1862–1919), lawyer and political figure in Ontario, Canada
 * William Selim Hanna (1896–1980), Egyptian Minister of Housing