- Greg KIS -- Greg Maurer
- Greg Mayo -- Greg Parker
- Greg Parys -- Greg Shier
- Greg Shires -- Greg Wall
- Greg Wall's Later Prophets -- Gregg de Castro
- Gregg Diamond -- Gregg Won
- Gregg Won & The Friendly Ghosts -- Gregorian Singers
- Gregoriana -- Gregory Dolbashian
- Gregory Douglass -- Gregory P. DeRespino
- Gregory P. Ellis -- Gremlin
- Gremlinz -- Gretchen Jester
- Gretchen Lieberum -- Grey Foxx
- Grey & Frost -- Grey Larsen