- Mirror Of Darkness (Speed Metal-Belgium) - Other name : MOD
- Method Of Destruction (Crossover-USA) - Other name : MOD
- Machines Of Dystopia (Deathcore-Poland) - Other name : MoD
- Modar (Doom Metal-Malaysia) - Other name : ex-Demori
- Modder (Sludge Doom-Belgium)
- Model 101 (Experimental Metal-Netherlands)
- Moder (Black Death-Germany)
- Moderix (Death Black-Russia)
- Modern Age Dying (Melodic Death-Slovakia)
- Modern Age Storytellers (Symphonic Metal-Italy)
- Modern Crimes (Hardcore-Canada)
- Modern Dark Age (Black Metal-USA) - Other name : MDA
- Modern Day Babylon (Modern Metal-Czechia) - Other name : MDB
- Modern Day Collapse (Hardcore-Philippines)
- Modern Day Escape (Post Hardcore-USA) - Other name : MDE
- Modern Day Outlaw (Metal-USA) - Other name : MDO
- Modern Funeral Art (Gothic Doom-France) - Other name : MFA
- Modern Life Is War (Hardcore-USA) - Other name : MLIW
- Modern Rites (Black Metal-Other)
- Moderna (Death Doom-Germany)
- Modernhell (Hardcore-USA)
- Modest Attraction (Hard Rock-Sweden)
- Modesty And Pride (Progressive Metal-Czechia) - Other name : Modesty & Pride
- Mirror Of Dead Faces (Deathcore-USA) - Other name : MODF
- Modifidious (Thrash Speed-USA)
- Modified Last (Melodic Death-Serbia) - Other name : ML
- Thurisaz (BEL) (Atmospheric Black-Belgium) - Other name : ex-Modilium
- Modok (Stoner Doom-Finland)
- Modorra (SWE) (Death Metal-Sweden)
- Modorra (BRA) (Alternativ Death-Brazil)
- Psordid (Thrash Metal-South-Africa) - Other name : PSordid, ex-Module 69
- Módulo 1000 (Heavy Rock-Brazil) - Other name : Love Machine
- Modulus (Technical Death-USA)
- Modus Delicti (Grind Death-Italy)
- Modus Inferi (Melodic Power-Argentina)
- Modus Operandi (Power Metal-USA)
- Modus Vivendi (Progressive Metal-Australia)
