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) (c.1400–1467), lord mayor of London William Gregory (mayor) (1896–1970), mayor of Lower Hutt, New Zealand William Gregory (Rhode Island governor) (1849–1901), American governor William Henry Gregory (1817–1892), Anglo-Irish politician, MP for Dublin and County Galway William S. Gregory (1825–1887), mayor of Kansas City W. Voris Gregory (1877–1936), US congressman from Kentucky Ivey William Gregory, known as Bill, American politician from Georgia

Sports Bill Gregory (born 1949), former American football defensive lineman Robert Gregory (RFC officer) (William Robert Gregory, 1881–1918), Irish cricketer and artist

Others Will Gregory (born 1959), British musician with Goldfrapp William Gregory (Carmelite) (fl. 1520), Scottish Carmelite William Gregory (chemist) (1803–1858), Scottish chemist William Gregory (Chief Justice), British jurist and first Chief Justice of Quebec William Gregory (civil servant) (1762–1840), Irish senior civil servant William D. Gregory (1825–1904), American clipper ship captain, later a Union Navy commander William G. Gregory (born 1957), NASA astronaut William King Gregory (1876–1970), American zoologist

See also