'William Walker' may refer to:
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William Walker (soldier) (1824–1860), U.S. soldier and filibuster who tried to conquer Central America; briefly ruled Nicaragua
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William Walker (composer) (1809–1875), composer in the shape note tradition, author of Southern Harmony
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William Walker (diplomat), U.S. ambassador to El Salvador, 1988–1992; leader of the Kosovo Verification Mission
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William Walker (Amateur Paleontologist) the person who discovered Baryonyx.
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William Walker (diver) (1869-1918), the diver who saved Winchester Cathedral from collapse
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William Walker (politician), Irish-born state Assemblyman from New York; father of Jimmy Walker (mayor of New York City, 1926–1932)
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William Walker (Quebec politician) (1797-1844), lawyer and politician in Lower Canada
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William Walker (US actor), African-American film actor (''To Kill a Mockingbird'').
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William Walker (assistant), assistant to George Eastman
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William Walker (chef) (born 1969)
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William Walker (fictional character), character in S.M. Stirling ''Island in the Sea of Time'' series
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William Walker (Australian footballer), Australian Rules football player with Fitzroy Football Club, 1903–1914
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William Walker (missionary) (1808-1896), missionary in Gabon
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William Walker (cyclist) (born 1985), Australian racing cyclist for Rabobank
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William Walker (jockey), African-American jockey
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William Walker, Belfast based socialist
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William Walker (British colonial governor) - an early governor of British Guiana
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William Walker (U.S. baritone, opera producer) (born 1931)
''See also
Bill Walker''