William Dean
William Dean is the name of the following people:
- William Dean (priest) († 1588), Catholic martyr (CE)
- William Dean (engineer) (1840–1905), British railway engineer
- William Dean (water polo player) (1887-1949), British water polo player
- William F. Dean (1899-1981), General of the United States Armed Forces during the Korean War North Korean prisoner of war
- William Ralph Dean , known as Dixie Dean (1907–1980), English football player
- William Reginald Dean (1896–1973), British mathematician and fluid dynamist