Maerebat is a Buenos Aires black metal act featuring Lord Abductum on music and Satani Lamentatio on lyrics, with drums handled by Favio Guzman. The band released their debut four-track recording "Amos del Caos" in April 2024, having tracked it the previous year before editing and releasing it independently.

Magiak is a black metal band from Bogotá, Colombia, formed in 2026. The band released their debut demo "Tempus Fugit" in January 2026, a six-track recording featuring Spanish-language song titles rooted in themes of horror and darkness.

Mahanvhantara was a black metal band from Aracaju, Sergipe, Brazil, formed in 2007 with lyrical themes rooted in Thelema, Ophiolatry, and Gnostic Luciferianism. The band released the demo O Decantar dos Dragões Decaídos in July 2007, recorded at Cathal Dallan Home Studio in Aracaju, and later returned with the album Dissolutionem - Finis Coronat Opus in September 2018, released through Black Hearts Records.

Malakay was a black metal band from the interior of Minas Gerais whose approach leaned toward raw, uncompromising aggression. The band left behind recordings including the demo "Radicalism or Die" and the cassette album "The Edge Garden" before splitting up.

A nascent black metal project out of Rio de Janeiro, Malatanya emerged in 2024 with an outlook rooted in orthodox darkness and ominous atmosphere. Still in their early stages, the band channels the malevolent energy of the city's underground extreme metal scene.

Maldição is a metal-punk outfit steeped in the traditions of Motörhead, Venom, and Hellhammer, wielding abrasive riffs alongside pointedly anti-fascist, anti-capitalist lyrics. Releases like "Metal Punk Antinazi Demo" and "A Voz do Mal" cement their position at the crossroads of black metal rawness and punk confrontation.

A long-running death-black metal force from the São Paulo underground, Malediction 666 draws heavily from the Greek black metal tradition — the 2019 album "We, Demons" even features guest appearances from Necroabyssious of Varathron and Sakis Tolis of Rotting Christ. The project is largely driven by a single individual, resulting in a focused and consistent sound shaped by decades of devotion to the dark arts.

Maleficarum brings a psychedelic sensibility to black metal from the scorched northeast of the country, threading hallucinatory textures through an otherwise bleak and hostile framework. Their 2021 release "Blocksberg Selecta" serves as an entry point into their occult-influenced sound, which sits at the intersection of ceremonial atmosphere and raw black metal abrasion.

Rising from the hot interior of Piauí, Malignitude play a rawly atmospheric strain of black metal with occult and misanthropic leanings, as heard on their debut "Sons of Infernal Land." The record unfolds across six tracks of cold, mid-paced aggression, channeling the bleak grandeur typical of Scandinavian second-wave black metal through a distinctly northern Brazilian lens.