William, Willie, Bill, or Billy Cameron may refer to:
Law and politics William E. Cameron (1842–1927), American politician William Cameron (Canadian politician) (1847–1920), Canadian politician in Nova Scotia William George Cameron (1853–1930), Canadian politician in British Columbia William Cameron (Australian politician) (1877–1931), Australian politician in New South Wales
Religion William Cameron (priest) (1688–1765), Irish Anglican priest William Cameron (poet) (1751–1811), Scottish poet and minister of the Church of Scotland William John Cameron (1907–1990), Scottish minister
Sports Willie Cameron (1883–1958), Scottish football player and manager Billy Cameron (1896–1972), Canadian ice hockey player Bill Cameron (footballer) (1928–2021), Australian rules footballer Bill Cameron (rugby league), Australian rugby league player
Others William Gordon Cameron (1827–1913), British soldier and colonial administrator William Cameron (explorer) (1833–1886), British surveyor who discovered the Cameron Highlands William Bleasdell Cameron (1862–1951), Canadian journalist and author William J. Cameron (1878–1955), Canadian newspaper editor Bill Cameron (philanthropist) (1924–1993), Canadian inventor and engineer Bill Cameron (journalist) (1943–2005), Canadian journalist W. Bruce Cameron (William Bruce Cameron, born 1960), American novelist and humorist Bill Cameron (mystery author) (born 1963), American mystery novelist
See also William Cameron Coup (1837–1895), American businessman William Cameron Edwards (1844–1921), Canadian businessman and politician William Cameron Forbes (1870–1959), American investment banker and diplomat William Cameron McCool (1961–2003), American naval commander and astronaut