William Knox may refer to:
Australia
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William Dunn Knox (1880–1945), Australian artist
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William Knox (Victorian politician) (1850–1913), Australian politician - House
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William Knox (Queensland politician) (1927–2001), Australian state politician - Legislative Assembly
United Kingdom
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William Knox (Scottish poet) (1789–1825), Scottish poet and journalist
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William Knox D'Arcy
William Knox D'Arcy (11 October 18491 May 1917) was a British-Australian businessman who was one of the principal founders of the Energy in Iran, oil and petrochemical industry in Persia (Iran). The D’Arcy Concession was signed in 1901 and all ...
(1849–1917), British entrepreneur
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William Knox (footballer, fl. 1927–1934), Scottish professional footballer
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William Knox (footballer, born 1904), Scottish professional footballer
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William Knox (MP) (1826–1900), MP for Dungannon
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William Knox (British Army officer) (1847–1916), British general
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William Knox (bishop) (1762–1831), Bishop of Killaloe and Kilfenora
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William Knox (artist) (1862–1935), British artist of marine paintings and scenes of Venice
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William Knox (cricketer) (1903–1954), Scottish cricketer
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Bill Knox (1928–1999), Scottish author
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Willie Knox (born 1937), Scottish professional footballer and manager
United States
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Frank Knox
William Franklin Knox (January 1, 1874 – April 28, 1944) was an American politician, soldier, newspaper editor, and publisher. He was the Republican vice presidential candidate in 1936 and Secretary of the Navy under Franklin D. Roosevelt d ...
(William Franklin Knox, 1874–1944), American Secretary of the Navy
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William F. Knox (1885–1975), American football player and coach and lawyer
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William Jacob Knox Jr. (1904–1995), African-American chemist, worked on the Manhattan Project
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William J. Knox (1820–1867), California businessman and politician
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William Shadrach Knox (1843–1914), American congressman from Massachusetts
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William W. Knox (1911–1981), U.S. federal judge
{{hndis, Knox, William