William Cameron may refer to:
- William Cameron (Australian politician) (1877–1931), New South Wales politician
- William Cameron (explorer) (1833–1886), British surveyor who discovered the Cameron Highlands
- William Cameron (Canadian politician) (1847–1920), Nova Scotian politician
- William Cameron (poet) (1751–1811), Scottish poet and minister of the Church of Scotland
- William Bleasdell Cameron (1862–1951), survivor of the Frog Lake Massacre, journalist and author
- William E. Cameron (1842–1927), American politician
- William Gordon Cameron (1827–1913), British soldier and colonial administrator
- William Cameron (priest) (1688–1765), Irish Anglican priest
- William George Cameron (1853–1930), Canadian politician in the Legislative Assembly of British Columbia
- William John Cameron (1907–1990), Scottish minister
- William J. Cameron (1878–1955), Canadian newspaper editor
- Willie Cameron (1883–1958), Scottish football player and manager (Blackburn Rovers, Hull City, Bury)
- Bill Cameron (footballer) (1928–2021), Australian rules footballer for St Kilda
- Bill Cameron (journalist) (1943–2005), Canadian journalist
- Bill Cameron (mystery author) (born 1963), American author
- Bill Cameron (philanthropist) (1924–1993), Canadian inventor, engineer and founder of the Neil Squire Society
- Billy Cameron (1896–1972), Canadian ice hockey player