Jack Gregory
Jack Gregory may refer to:
- Jack Gregory (cricketer), Australian cricketer
- Jack Gregory (American football guard), American football player for the University of Alabama, University of Chattanooga and Cleveland Rams
- Jack Gregory (sprinter), British sprinter
- Jack Gregory (footballer, born 1925), English football full back for Southampton and Leyton Orient
- Jack Gregory (footballer, born 1926), English football inside forward for West Ham United and Scunthorpe United
- Jack Gregory (American football coach), college football head coach for East Stroudsburg, Villanova, and Rhode Island
- Jack I. Gregory, general in the United States Air Force
- Jack Gregory (defensive end), American football defensive end