William, Willie or Billy Dunn may refer to:
Politics Sir William Dunn, 1st Baronet, of Lakenheath (1833–1912), banker and Liberal MP for Paisley Sir William Dunn, 1st Baronet, of Clitheroe (1856–1926), British Conservative politician William Dunn (South Australian politician) (1841–1891) William E. Dunn (1926–2016), mayor of Murray, Utah William McKee Dunn (1814–1887), U.S. representative from Indiana Bill Dunn (American politician) (William K. Dunn, born 1961), American politician and member of the Tennessee House of Representatives Bill Dunn (Australian politician) (William Fraser Dunn, 1877–1951), Australian politician and member of the New South Wales Legislative Assembly
Sports William Dunn (bobsleigh) (born 1949), Canadian Olympic bobsledder William Dunn (footballer, born 1877) (1877–?), English footballer, played for Manchester United William Thomas Dunn (1881–1962), American football player for Penn State Willie Dunn (golfer) (died 1952), English golfer and golf course designer Willie Dunn Sr. (1821–1878), Scottish golfer Billy Dunn (footballer, born 1865) (1865–1921), Scottish footballer with Stoke and other clubs Billy Dunn (footballer, born 1910) (1910–1980), Scottish footballer with Celtic, Brentford, Southampton Billy Dunn (footballer, born 1920) (1920–1982), English footballer with Darlington Billy Dunn (racing driver) (born 1984), American dirt modified racing driver Bill Dunn (footballer) (William Richard Dunn, 1915–1997), Australian rules footballer
Other William Dunn (industrialist) (1770–1849), Scottish agriculturist, mechanic, and mill owner William Dunn (Medal of Honor) (1834–1902), American Civil War sailor William Dunn (physician) (c. 1550–1607), president of Royal College of Physicians, see Lumleian Lectures William Arthur Dunn (1875–1947), Methodist clergyman in South Australia William Ellsworth Dunn (1861–1925), city attorney of Los Angeles, California William N. Dunn, American professor of international relations at the University of Pittsburgh William R. Dunn (actor) (1888–1946), American film actor and writer William R. Dunn (aviator) (1916–1995), American World War II fighter pilot Sir William Dunn Professor of Biochemistry, chair at the University of Cambridge (created 1914) Willie Dunn (1942–2013), Canadian singer-songwriter, film director, and politician Bill Dunn (Pilbara elder) (William Dunn, born 1911), Indigenous Australian pastoralist and elder
See also Bill Dunn (disambiguation) Dunn (surname) Dunn baronets, three British baronetcies with incumbents named William Dunn William Donne (cricketer) (1875–1934), English cricketer William Donne (priest) (1845–1914), British clergyman William Bodham Donne (1807–1882), English journalist