M.A.R.T.Y.R. is a doom/death metal band from Supraśl, Poland, formed in 1997. They craft crushing doom-death compositions steeped in oppressive heaviness.

Macabre Manifesto is a funeral doom and death metal band from Spain, formed in 2025. They craft crushing, glacially paced funeral doom layered with death metal brutality.

Mace Head is a black/doom metal and crust band from Ostrava, Czech Republic, active since 2019 with a discography spanning demos, splits, and EPs including "Jötun" and "DAMÄLOG." Their sound fuses the raw nihilism of crust punk with the oppressive weight of black and doom metal.

Machete is a hardcore/doom/sludge metal band from Essen, Germany, formed in 2025. Their sound fuses the confrontational energy of hardcore with the crushing weight of doom and sludge metal, representing the heaviest end of Essen's underground scene.

A stoner/doom metal act from the northern Portuguese city of Braga, Macumba has been delivering heavy, ritualistic grooves since 2015. Named after the Afro-Brazilian spiritual practice, the band channels syncretic mysticism into crushing doom.

Madalena is a heavy and doom metal band from Tuscany, Italy, formed in 2019. They channel crushing heavy doom from the Italian countryside.

Madder Mortem is an Oslo-based band that has evolved from atmospheric doom metal into a unique strain of progressive metal. Led by the distinctive vocals of Agnete Kirkevaag, the band has been a critical favorite in the Norwegian underground for their adventurous, genre-defying approach to heavy music.

Madness Blues is a blackened funeral doom metal and drone band from Greece, formed in 2023. They craft crushing, glacially paced extremity at the intersection of funeral doom and drone.

Madrigal of Sorrow is a post-black/doom metal band from Pskov, Russia, formed in 2024. They blend doom metal's crushing weight with post-metal's atmospheric dynamics.