Mansion is a doom metal and rock band from Turku, Finland, formed in 2013. They channel occult doom through ritualistic compositions steeped in dark mysticism.

Manslaughter is a death metal act from Villeneuve-d'Ascq near Lille, active since 2021. The band delivers the lethal aggression their criminal name demands from the northern French metropolis.

Manstopper is a thrash metal band from Münster, Germany, formed in 2021. Their sound delivers aggressive, unrelenting thrash from the Westphalian university city, contributing to the region's growing extreme metal presence.

Manstractor is a brutal death metal and grindcore band from the Mülheim an der Ruhr/Oberhausen area of Germany, active since 2013. Their sound combines the visceral extremity of brutal death metal with grindcore's relentless velocity, forged in the industrial heartland of the Ruhrgebiet.

Manta Birostris is a death/heavy metal act from Warsaw, named after the giant oceanic manta ray since 2012. The band channels the deep-sea grandeur of their namesake into heavy, sweeping compositions.

Mantar is a two-piece sludge/black metal juggernaut from Bremen, Germany, achieving massive heaviness with only drums and guitar across a prolific discography from "Death By Burning" (2014) through "Post Apocalyptic Depression" (2025). Their sound combines flogging beats, blackened melodies, and doom mayhem, drawing from Melvins, Motörhead, and Darkthrone without a bass guitar in sight.

Mantarok is a black metal band from Dumfries, Scotland, formed in 2014. They channel dark black metal from the Scottish Lowlands.

Mantas is a band from Newcastle upon Tyne, England, formed in 2012, having evolved from heavy metal and AOR into industrial groove metal and hardcore. Their creative arc traces a dramatic shift from melodic metal to crushing industrial heaviness.

Mantequilla is a heavy rock band from Helsinki, Finland, blending sludge, stoner rock, Southern rock, and punk into a distorted, riff-driven assault. Active since 2009 with releases spanning 'MQA Ep' through the 2022 album 'KØBENHAVN,' their catalog is a decade-plus of what they self-describe as 'mid tempo bull shit.'