Apofis is a black metal band from Quito, Ecuador, formed in 2021. Drawing on themes of darkness, rituals, mysticism, and misanthropy, the band has self-released a string of EPs including Rituals in the Dark, Reborn in the Black Sky, and The Mountain Mist, as well as contributing to a 2023 split release. They remain an active independent act in Ecuador's underground black metal scene.

Apoka is a black metal band from São Paulo, Brazil, active since 2020 within the city's dense underground extreme metal community. Their sound draws on the rawer, uncompromising traditions of the genre that have long flourished in southeastern Brazil.

Apokalyptisk Framtid is a black metal/noise/punk project from Catanduva, São Paulo state, formed in 2023. Their approach fuses the ugliness of raw black metal with punk and noise abrasion, and they have already appeared on split releases within the Brazilian underground, including the 2026 "Friends of Evil" split alongside Mortuário A.D., Mourning Souls, and Pugnax.

Aquelarre was a black metal band from São Paulo, Brazil, active in the underground scene and aligned with themes of Satanism, anti-Christianity, and hate in the tradition of South American raw black metal. They contributed a track to the Times of War - A Tribute to M.M.D.C. compilation before splitting up, leaving a small but ideologically committed footprint in the São Paulo scene.

Aqueronte is a black metal band from Curitiba, Paraná, Brazil, part of the city's long-running extreme metal underground. Their approach is rooted in raw, traditional black metal with an uncompromising aesthetic, operating within a regional scene that has produced influential acts like Amen Corner and Blackmass. The band draws influence from classical composition alongside classic and contemporary black metal.

Ar da Desgraça is a black metal band from Timbó, Santa Catarina, Brazil, whose name translates roughly to "air of misfortune." Their discography, including Praeludium Tenebras (2017) and Enigmática Perpétua Sinfonia (2020), explores themes of death, hatred, darkness, and melancholy within a raw, underground black metal framework. The duo features Peste Negra on vocals and guitar alongside Algoz on drums.

Arab Zaraq was a Brazilian black metal project active briefly in 2024 before splitting up, leaving minimal documentation in the underground. The name echoes the Qliphothic concept of A'arab Zaraq — the ravens of dispersion — a recurring reference point in occult black metal. Their release exists as a short-lived contribution to Brazil's prolific raw black metal underground.

Arbach was a black metal band from Anápolis, Goiás, Brazil, founded by Emperor Diavolos with the stated aim of combining melody and aggression in the tradition of classic Scandinavian black metal. The band released the demo The Warriors of Pagan Empire (2007), a full-length titled Left Hand Path (2015), and the album Bellum Aeterna (2018) before splitting up.

Arkhôn Tôn Daimoniôn is a black metal band from Salvador, Bahia, Brazil, founded in 1995 by vocalist Duxgor and guitarist Grim Abra-Melim Offilatrus, making them one of the longer-running underground black metal acts out of Brazil's northeast. Rooted in explicitly Satanic and blasphemous themes, they released the demo Sacrum Ex Operam Dare in 1998 and Visions of the Apocalypse in 1999, both circulated in the tape-trading underground. The band debuted live at the Occult Ritual of Fire Festival in December 1996 and has continued performing into the 2020s.