Greg Harris
Greg, Gregg, or Gregory Harris may refer to:
- Greg Harris , American politician in Illinois
- Greg A. Harris, American former major-league pitcher, 1981–1995
- Greg S. Harris, American museum executive, president of the Rock and Roll Hall of Fame
- Greg W. Harris, American former major-league pitcher, 1988–1995
- Gregg Harris, American educator and major figure in the Christian homeschooling movement
- Gregory N. Harris, United States Navy admiral
- Gregory K. Harris, United States Attorney in Illinois