William Knight
William, Bill, or Billy Knight may refer to:
Arts and entertainment
- William Frederick Knight, American voice actor
- William Henry Knight, British painter
Politics
- William Knight, member of parliament for Hythe
- Bill Knight, former Canadian member of parliament and financial executive
- William J. Knight, X-15 pilot and U.S. politician
- William M. Knight, American politician and merchant from Maryland
- William W. Knight , Pennsylvania politician
- William Knight , Wisconsin legislator and orchardman
- William Grills Knight, mayor of Albany, Western Australia
Sports
- William Knight , American mixed martial arts fighter
- Billy Knight , American basketball player who went to college at UCLA
- William Knight , Canadian volleyball player
- Billy Knight, American basketball player and executive in the NBA who went to college at Pittsburgh
- Bill Knight , British Olympic boxer
- Billy Knight , British tennis player
- William Knight, English football goalkeeper for Southampton
- Will Knight, English rugby union player
Others
- Billy Knight , Canadian criminal
- William Angus Knight, British writer, professor, and philosopher
- William Bruce Knight, Dean of Llandaff
- William Knight , architect in Nottingham
- William Knight , English buccaneer
- William Knight , martyred in 1596
- William Knight , member of the court of Henry VIII, and Bishop of Bath and Wells
- William W. Knight , lawyer, state legislator, publisher of The Oregon Journal
- William James Knight, American soldier and Medal of Honor recipient
- Will Knight, farmer and owner of Knight's Spider Web Farm