William Mann may refer to:
- William Hodges Mann (1843–1927), American politician
- William Mann (cricketer) (1878–1938), English cricketer
- William Julius Mann (1819–1892), U.S. Lutheran theologian and author
- William J. Mann, American author and gay historian
- William d'Alton Mann (1839–1920), American Civil War soldier and newspaper and magazine publisher
- William Mann (RAF officer) (1899–1966), senior Royal Air Force officer and flying ace
- William Mann (mathematician) (1920–2006), American mathematician
- William Mann (critic) (1924–1989), British music critic for The Times
- William Mann (MP), English politician in the House of Commons from 1621 to 1625
- William Abram Mann (1854–1934), general officer in the United States Army
- William M. Mann (1886–1960), entomologist and director of the National Zoo, Washington, D.C., 1925-1956
- Billy Mann, record producer/singer/songwriter
Famous quotes containing the words william and/or mann:
“Here lies the body of W. W.,
Who never more will trouble you, trouble you.”
—Anonymous. “On William Wilson, Tailor,” from H. J. Loaring’s Curious Records (1872)
“For the sake of goodness and love, man shall let death have no sovereignty over his thoughts.”
—Thomas Mann (1875–1955)