G
- Gackt
- Gallhammer
- Galneryus
- Gari
- Garlic Boys
- Garnet Crow
- Garo
- Gastunk
- Gauze
- The Gazette
- Geinoh Yamashirogumi
- Genkaku Allergy
- The Gerogerigegege
- Gethsemane
- Ghost (1984 band) (Experimental rock)
- Ghost (2004 band) (Gothic rock)
- Girugamesh
- Girl Next Door
- GISM
- Glay
- Globe
- GO!GO!7188
- Going Under Ground
- The Golden Cups
- Golden Bomber
- Gollbetty
- Gonin-ish
- Gore Beyond Necropsy
- Government Alpha
- GPKism
- Greeeen
- Greenmachine
- Grief of War
- Ground Zero
- Guitar Vader
- Guitar Wolf
- Guniw Tools
Read more about this topic: List Of Musical Artists From Japan