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) (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