William Whitaker may refer to:
William Whitaker (theologian) (1548–1595), English theologian William Whitaker (Puritan ejected minister) (1629–1672), English ejected minister William Whitaker (geologist) (1836–1925), British geologist William Whitaker (pioneer) (1821–1888), American pioneer William Whitaker (MP) (1580–1646), English lawyer and politician who sat in the House of Commons from 1640 to 1646 William Whitaker (equestrian) (born 1989), English show jumper Bill Whitaker (journalist) (born 1951), American journalist Bill Whitaker (American football) (born 1959), American football defensive back
See also William Whittaker (disambiguation) Whitaker (disambiguation) William Whitaker's Words, a computer program for Latin morphology