William Ball may refer to:
William Ball (MP) ( 1571), MP for Nottingham William Ball (settler) (1615–1680), English colonist William Ball (astronomer) (1627–1690), English astronomer William Lee Ball (1781–1824), Virginia congressman William Ball (Shropshire Giant) (1795–1852), 40 stone iron puddler William Ball (Michigan politician) (1830–1902), Lieutenant Governor of Michigan, USA, 1889 William Ball (footballer) (1886–1942), English footballer William Macmahon Ball (1901–1986), Australian academic and diplomat William Ball (skier) (1908–1979), Canadian skier and Olympic competitor William Bentley Ball (1916–1999), American constitutional lawyer William Ball (director) (1931–1991), American stage director William L. Ball (born 1948), American, former US Navy Secretary