| Band | Genre |
|---|---|
| Warlock | Heavy metal |
| Warlord | Heavy metal |
| Warrior | Heavy metal |
| Wendy O. Williams / Plasmatics | Punk Rock |
| White Lion | Hard Rock |
| Whitesnake | Hard Rock |
| Winger | Hard Rock |
| Wishbone Ash | Rock |
| Within Temptation | Symphonic Metal |
| X Japan | Power Metal |
| Xandria | Symphonic Metal |
| XYZ | Hard Rock |
| Yes | Rock |
| Yngwie Malmsteen | Heavy metal |
| Zero Nine | Hard Rock |
| ZZ Top | Hard Rock |
