William Congreve
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～ English playwright remembered for his comedies (1670-1729)
William Mitchell
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～ United States aviator and general who was an early advocate of military air power (1879-1936)
William Clark Gable
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～ United States film actor (1901-1960)
William Pitt
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～ English statesman who brought the Seven Years' War to an end (1708-1778)
William and Mary
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～ joint monarchs of England; William III and Mary II
William Claire Menninger
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～ United States psychiatrist and son of Charles Menninger (1899-1966)
William Schwenk Gilbert
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～ a librettist who was a collaborator with Sir Arthur Sullivan in a famous series of comic operettas (1836-1911)
William of Occam
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～ English scholastic philosopher and assumed author of Occam's Razor (1285-1349)
William Nunn Lipscom Jr.
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～ United States chemist noted for his theories of molecular structure (born in 1919)
William Strickland
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～ United States architect and student of Latrobe (1787-1854)
William I
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～ duke of Normandy who led the Norman invasion of England and became the first Norman to be King of England; he defeated Harold II at the battle of Hastings in 1066 and introduced many Norman customs into England (1027-1087)
William Henry Fox Talbot
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～ English inventor and pioneer in photography who published the first book illustrated with photographs (1800-1877)
William Tatem Tilden Jr.
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～ United States tennis player who dominated men's tennis in the 1920s (1893-1953)
William Edward Burghardt Du Bois
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～ United States civil rights leader and political activist who campaigned for equality for Black Americans (1868-1963)
William Styron
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～ United States writer best known for his novels (born in 1925)
William Averell Harriman
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～ United States financier who negotiated a treaty with the Soviet Union banning tests of nuclear weapons (1891-1986)
William Henry Gates
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～ United States computer entrepreneur whose software company made him the youngest multi-billionaire in the history of the United States (born in 1955)
William Chambers
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～ English architect (1723-1796)
William S. Burroughs
— Navneord
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～ United States writer noted for his works portraying the life of drug addicts (1914-1997)
William Faulkner
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～ United States novelist (originally Falkner) who wrote about people in the southern United States (1897-1962)