- 3 (ITA) (Industrial Black-Italy) - Other name : Three
- 3 (USA) (Progressive Metal-USA) - Other name : Three
- Three Crowns (Hardcore-Canada)
- Three Days Grace (Alternative Metal-Canada)
- Three Days In Darkness (Death Thrash-Sweden)
- Three Days In Hell (Death Metal-USA)
- Three Dead Fingers (Thrash Metal-Sweden)
- Three Eyes Left (Stoner Doom-Italy)
- Three Eyes Of The Void (Black Metal-Ukraine)
- Three Hour Ceasefire (Thrash Death-Ireland)
- Three Knee Deep (Hardcore-USA)
- Three Lights Down Kings (Post Hardcore-Japan) - Other name : TLDK, 3LDK
- Three Lions (Hard FM-United-Kingdom)
- Three Man Army (Hard Rock-United-Kingdom)
- Three Minutes Of Hate (Death Metal-USA)
- Three Nails (Symphonic Death Black-Italy)
- Three Of Swords (Stoner Doom-USA)
- Three Pigs Trip (Stoner-Italy)
- Three Point Tilt (Progressive Metal-Australia) - Other name : TPT
- Three Quarter Ton (Metal-USA) - Other name : 3/4 Ton
- Three Seconds Rule (Thrash Heavy-France) - Other name : 3SR
- Three Sixes (Industrial Metal-USA)
- Three Steps To The Ocean (Experimental Metal-Italy)
- Three Victims (Death Grind-Australia) - Other name : 3 Victims, ex-Hemlok, ex-Butchered Cunt
- 3 Wishes (Hard Rock-Germany) - Other name : Three Wishes
- Three Years Hollow (Alternative Metal-USA) - Other name : TYH, 3YH
- Threefold Law (Doom Metal-USA)
- Threering (Heavy Metal-USA)
