| Band | Genre |
|---|---|
| Manowar | Heavy metal |
| Marilyn Manson | Industrial Rock |
| Marty Friedman | Instrumental Rock |
| Megadeth | Thrash Metal |
| Metal Church | Heavy metal |
| Metallica | Thrash Metal |
| Michael Angelo Batio | Instrumental Rock |
| Michael Schenker | Hard Rock |
| Misfits | Punk Rock |
| Motley Crue | Hard Rock |
| Motorhead | Heavy metal |
| Mr. Big | Hard Rock |
