William Whitaker
William Whitaker may refer to:
- William Whitaker (theologian), English theologian
- William Whitaker (Puritan ejected minister), English ejected minister
- William Whitaker (geologist), British geologist
- William Whitaker (pioneer), American pioneer
- William Whitaker (MP), English lawyer and politician who sat in the House of Commons from 1640 to 1646
- William Whitaker (equestrian), English show jumper
- Bill Whitaker (journalist), American journalist
- Bill Whitaker (American football), American football defensive back