William Mann may refer to:
William Mann (MP), English politician in the House of Commons from 1621 to 1625
William Mann (1610–1650), original settler of Providence, Rhode Island
William Abram Mann (1854–1934), general officer in the United States Army
William d'Alton Mann (1839–1920), American Civil War soldier and newspaper and magazine publisher William C. Mann "Bill" (died 2004), computational linguist William Edward George Mann (1899–1966), senior Royal Air Force officer and flying ace William "Billy" H. Mann, record producer/singer/songwriter William Hodges Mann (1843–1927), American politician William Horace Mann (1878–1938), English cricketer William J. Mann, American author and gay historian William Joseph Mann (1875–1951), Australian politician William Julius Mann (1819–1892), U.S. Lutheran theologian and author William M. Mann (1886–1960), entomologist and director of the National Zoo, Washington, D.C., 1925-1956 William Robert Mann (1920–2006), American mathematician William Somervell Mann (1924–1989), British music critic for The Times
See also
Mann (surname)