William Dixon may refer to:
Billy Dixon (footballer) (born 1941), former Shamrock Rovers player
Billy Dixon (1850–1913), one of only a few civilians to be awarded the Medal of Honor
Billy Dixon and the Tropics, a nom de disque for the 1950s pop/rock group Four Lovers who evolved into The Four Seasons
William W. Dixon (1838–1910), U.S. Representative from Montana.
William Dixon manuscript, the earliest manuscript of bagpipe music from the UK, compiled in 1733 by a piper from Northumberland
Bill Dixon (1925–2010), American musician and artist
Bill Dixon (game designer), 18XX board game designer
Willie Dixon (1915–1992), U.S. blues musician
William Hepworth Dixon (1821–1879), social and prison commentator
William Macneile Dixon (1866–1946), British author
William Dixon (Assemblyman), English-born Wisconsin politician
William Dixon (cricketer) (1856-1938), New Zealand cricketer
William Dixon (politician) (1860–1935), Australian politician
William C. Dixon (1904–1997), government antitrust lawyer and judge on the Ohio Supreme Court
William Dixon (priest) (born 1939), Dean of Barbados
William Gray Dixon (1854–1928), Presbyterian minister