William Gregory
William Gregory may refer to:
Politicians
- William Gregory (1625–1696), English MP for Hereford and Weobley, Speaker of the House of Commons
- William Gregory (died 1616), MP for Nottingham
- William Gregory (fl. 1406), MP for Guildford
- William Gregory (lord mayor), lord mayor of London
- William Gregory (mayor), mayor of Lower Hutt, New Zealand
- William Gregory (Rhode Island governor), American governor
- William Henry Gregory, Anglo-Irish politician, MP for Dublin and County Galway
- William S. Gregory, mayor of Kansas City
- W. Voris Gregory, US congressman from Kentucky
- Ivey William Gregory, known as Bill, American politician from Georgia
Sports
- Bill Gregory, former American football defensive lineman
- Robert Gregory (RFC officer), Irish cricketer and artist
Others
- Will Gregory, British musician with Goldfrapp
- William Gregory (Carmelite), Scottish Carmelite
- William Gregory (chemist), Scottish chemist
- William Gregory (Chief Justice), British jurist and first Chief Justice of Quebec
- William Gregory (civil servant), Irish senior civil servant
- William D. Gregory, American clipper ship captain, later a Union Navy commander
- William G. Gregory, NASA astronaut
- William King Gregory, American zoologist