- Jonne (Pagan Folk-Finland)
- Jani Lane (Hard Rock-USA)
- Jordan Rudess (Progressive Metal-USA)
- John Wayne (Metalcore-Brazil)
- Journal (Progressive Metal-USA)
- Journey (Hard FM-USA)
- Journza (Symphonic Metal-USA)
- Jane (Metalcore-Germany)
- Jorn (Heavy Rock-Norway)
- Jade (Atmospheric Death-Other)