William Power

William Power may refer to:

Australia

 * Bill Power (Australian politician) (1893–1974), member of the Queensland Legislative Assembly
 * William Grene Power (1835–1903), member of the Queensland Legislative Council
 * Will Power (born 1981), Australian motorsport racer
 * Bill Power (footballer) (born 1937), Australian rules footballer who played with South Melbourne
 * Billy Power (footballer) (1917–2002), Australian rules footballer who played with Footscray

Canada

 * William Power (Canadian politician) (1849–1920), member of the Canadian House of Commons
 * William Gerard Power (1882–1940), his son, Canadian politician in Quebec
 * William Power (Quebec judge) (1800–1860), judge and political figure in Lower Canada
 * William Edward Power (died 2003), Roman Catholic Bishop of Antigonish, 1960–1986
 * William Patrick Power (1843–1919), Canadian priest and head of Duquesne University

United Kingdom

 * William Power (Scottish politician) (1873–1951), leader of the Scottish National Party
 * William Henry Power (1842–1916), Chief Medical Officer of England
 * William Power, member of the Birmingham Six

United States

 * William Patrick Power (1843–1919), first rector of the Pittsburgh Catholic College
 * Will Power (performer), American actor, rapper and playwright
 * Bill Power (outlaw), member of the Dalton Gang