Sir William Barber, 1st Baronet (1860–1927), English solicitor, property developer and philanthropist
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William D. Barber (born 1949), American camera operator and cinematographer
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William E. Barber (1919–2002), United States Marine Corps colonel and Korean War recipient of the Medal of Honor
William Shakespeare | William Laud | William Blake | William | William III of England | William Morris | William McKinley | William Howard Taft | William Ewart Gladstone | William the Conqueror | William S. Burroughs | William Shatner | William Faulkner | William Randolph Hearst | William Wordsworth | William Tecumseh Sherman | William Hogarth | The Barber of Seville | Prince William, Duke of Cambridge | William Penn | William Jennings Bryan | William Gibson | William Wilberforce | William James | William Makepeace Thackeray | Fort William | William Hanna | William Hague | William III | William Hurt |