Greg(ory) Green(e) may refer to:
- Greg Green, Spokane-area based businessman and entrepreneur
- Greg Greene, a 1997 Alberta Social Credit Party candidate for the Calgary-Nose Creek provincial electoral district
- Gregory Greene, Toronto-based director of 2004 documentary film The End of Suburbia
- Gregory Green (musician), known as Grant Green, Jr.
- Gregory Green (artist), see Nuclear weapons in popular culture