William Tait is the name of:
William Auld Tait (1826–1900), Canadian pioneer and politician William W. Tait (1929–2024), professor of philosophy at the University of Chicago William Tait (cricketer), New Zealand cricketer William Tait (footballer), Association football player during the 1890s and 1900s. William Tait (publisher) (1793–1864), Scottish publisher best known for Tait's Magazine William Tait (MP) (died 1800), Member of Parliament for Stirling Burghs 1797–1800
See also Willie Tait, British Royal Air Force officer William Tate (disambiguation)