William Way (c. 1560–1588), Catholic martyr executed at Kingston upon Thames
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William Flower, 1st Baron Castle Durrow (1685–1746), Irish peer and MP for Kilkenny County and Portarlington
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William Henry Flower (1831–1899), English comparative anatomist and surgeon
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 | 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 | William Walton |
The title of Baron Castle Durrow, in the County of Kilkenny, had been created in the Peerage of Ireland in 1733 for his father William Flower.