William Walker
William Walker may refer to:
Arts
- William Walker (English engraver), English engraver
- William Walker (Scottish engraver), mezzotint engraver of portrait of Robert Burns
- William Sidney Walker, English Shakespearean critic
- William Walker (composer), American Baptist song leader and composer, compiler of Southern Harmony
- William Aiken Walker, American artist
- Blind Willie Walker, American blues guitarist and singer
- Bill Walker (actor), African-American film actor
- William Walker (muralist), muralist in Chicago
- William Walker (baritone), singer with the Metropolitan Opera
- Wee Willie Walker, American soul blues singer
- Sugar Belly, Jamaican mento musician
Military
- William H. T. Walker, Confederate general in the American Civil War
- William Stephen Walker, Confederate brigadier general
- William Walker (filibuster), American filibuster in Latin America; briefly ruled Nicaragua
- William George Walker, recipient of the Victoria Cross
- William Walker (RFC airman), British First World War flying ace
- William Walker (RAF officer), at the time of his death the oldest survivor of the Battle of Britain
- William J. Walker, United States Army general
Politics
- Bill Walker (American politician),, former governor of Alaska
- William Walker (Quebec merchant), Lower Canada merchant and politician
- William Walker (Quebec politician), Lower Canada lawyer and politician
- William Walker (Wyandot leader), Native American leader, sometime chief of the Wyandot Nation in Ohio and Kansas
- William Adams Walker, U.S. Representative from New York
- William Walker (filibuster), American mercenary who usurped the office of President of Nicaragua in 1856–1857
- William Walker (New South Wales politician), Australian politician
- William Walker (New South Wales colonial politician), Australian politician
- William Walker (trade unionist), Irish trade unionist and socialist
- William Campbell Walker, New Zealand politician
- William Froggatt Walker, Australian politician
- William H. Walker (New York City politician), American politician, father of New York City mayor Jimmy Walker
- William H. Walker (Canadian politician), member of the Legislative Assembly of Quebec
- William L. Walker Jr., American politician, former Arkansas state senator
- William O. Walker, American publisher, politician and editor
- William Walker (diplomat), former US ambassador to El Salvador and leader of the Kosovo Verification Mission
- William Walker (Iowa politician), American politician in Iowa
Sports
- William Walker (Australian cricketer), Australian cricketer
- William Walker (footballer, born 1871), Scottish footballer
- Billy Walker (jockey), African-American jockey
- William Walker (footballer, born 1884), Scottish footballer
- William Walker (English cricketer), English cricketer
- Willie Walker (footballer, born 1891), English football outside left
- Willie Walker (Queen's Park footballer), Scottish footballer
- Willie Walker (footballer, born 1906), Scottish footballer
- Willie Walker (rugby union), New Zealand rugby union footballer
- William Walker (cyclist), Australian racing cyclist
- Will Walker (Australian footballer), Australian rules footballer
- William Walker (baseball), baseball center fielder in the Negro leagues
Other
- William Walker (schoolmaster), English schoolmaster
- William Walker (principal), British Principal of New Inn Hall
- William Walker (surgeon), Scottish surgeon
- William R. Walker (architect), American architect
- William H. Walker (Vermont judge), Vermont attorney and judge
- William Walker (1838–1908), Scottish-born Australian writer
- William Walker (priest), Dean of Aberdeen and Orkney
- William R. Walker (publisher), 19th-century English printer and publisher
- William David Walker, bishop in the Episcopal Church
- William Walker, 1st Baron Wavertree, British businessman, art collector, and racehorse breeder
- William Walker (diver), diver who saved Winchester Cathedral from collapse
- William Hultz Walker, American chemistry professor and a pioneer of chemical engineering
- William F. Walker, President of Auburn University 2001–2007
- William R. Walker, Canadian leader in The Church of Jesus Christ of Latter-day Saints
- Black Racer (DC Comics) or Sgt. William "Willie" Walker, a character in DC Comics