William Davidson
William or Bill Davidson may refer to:
Businessmen
- Bill Davidson (businessman), Michigan businessman and sports team owner
- * William Davidson Institute, University of Michigan, named in honor of Bill Davidson
- William Davidson (lumberman), Scots-Canadian pioneer
Politics
- Sir William Davidson of Curriehill, Scottish merchant and member of the Privy council
- William Davidson (congressman), member of the United States House of Representatives from North Carolina
- William Davidson (Pennsylvania representative), Pennsylvania politician
- William Davidson (conspirator), Jamaican-born British radical executed for his part in the Cato Street Conspiracy
- William McCartney Davidson, Canadian journalist, politician, and author
- William H. Davidson (lieutenant governor), Lieutenant Governor of Illinois
- William Davidson (British Columbia politician), Scottish-born miner and political figure in British Columbia
Engineering
- William Davidson (engineer), Australian civil engineer
- William Soltau Davidson, New Zealander, pioneer of refrigerated shipping
Harley-Davidson
- William A. Davidson, executive at Harley-Davidson Motor Company, brother of co-founders Arthur and Walter Davidson, and grandfather of Willie G. Davidson
- William H. Davidson (motorcyclist), American motorcycle racer and president of Harley-Davidson Motorcycles
- Willie G. Davidson, former styling chief of Harley-Davidson and designer of the Harley-Davidson Super Glide
Military
- William Lee Davidson, American Revolutionary War officer, namesake of Davidson College
- William Davidson Bissett, Scottish recipient of the Victoria Cross
Sports
- Bill Davidson (American football, born 1915), American football player
- Bill Davidson (American football, born 1935), American football player and coach
- Bill Davidson (baseball), outfielder in Major League Baseball
- Bill Davidson (rugby league), New Zealand rugby league player
- Will Davidson, UK footballer active in the 1890s
- William Davidson (sailor), British competition sailor
- William Davidson (Scottish footballer), Scottish footballer with Falkirk, Everton, etc.
- William Davidson (Sussex cricketer), English cricketer
- William Davidson (MCC cricketer), English cricketer
- Kayak Bill, Canadian rock climber
Others
- William Davidson (bishop), bishop of the Episcopal Diocese of Western Kansas
- William B. Davidson, American actor
- William Mackay Davidson, Scottish haematologist and pathologist
- William Davidson (filmmaker), Canadian filmmaker and TV creator
- William Leslie Davidson, Scottish philosopher
- William Taylor Davidson, owner and editor of the Fulton Democrat newspaper
- William Montgomery Davenport Davidson, Australian surveyor
- William Norman Lascelles Davidson, English cinematographer
- William Davidson (landscape gardener), designer of Old Ipswich Cemetery