William, Will, Bill or Billy Dean is the name of the following people:
Arts and entertainment Bill Dean (1921–2000), British actor Billy Dean (born 1962), American country music singer
Sports William Dean (Hampshire cricketer) (c. 1882–?), Australian cricketer William Henry Dean (1887–1949), English water polo player Dixie Dean (1907–1980), English footballer William Dean (Somerset cricketer) (1926–1994), English cricketer Bill Dean (baseball) (), American baseball player Will Dean (rower) (born 1987), Canadian rower Will Dean (footballer) (born 2000), English footballer
Other fields William Dean (priest) (died 1588), English priest and martyr William Dean (engineer) (1840–1905), British railway engineer William Reginald Dean (1896–1973), British applied mathematician William F. Dean (1899–1981), United States Army general William D. Dean (born 1940), American politician and television producer Will Dean (entrepreneur) (born 1980), English business founder Bill Dean (politician), American legislator from Ohio
See also William the Dean, 13th century Scottish bishop William Deane (born 1931), Governor-General of Australia from 1996 to 2001 Billy Deans (disambiguation)