Avenger is a traditional heavy metal band from São Paulo, Brazil, active since 1998. Rooted in the classic British and American heavy metal tradition — with clear debts to Judas Priest, Black Sabbath, and Motörhead — the band plays no-frills steel with a São Paulo underground sensibility, maintaining an active presence in the Brazilian metal circuit across multiple decades.

Avernal is a death metal and death 'n' roll band from Quilmes, Buenos Aires Province, Argentina, founded in 1993 and widely regarded as one of the most important extreme metal acts in the country. The band, led by vocalist Cristian Rodríguez alongside guitarists Federico Ramos and Gonzalo Varela, bassist Francisco Cañardo, and drummer Germán Rodríguez, has released eight studio albums — from the self-titled debut in 1997 through No Hope (2001), III (2004), El Sangriento (2006), and Tzompantli (2020) — and has shared stages internationally with acts including Sepultura, Meshuggah, Entombed A.D., and Deicide.

Avernus was a black metal band from Belo Horizonte, Minas Gerais, Brazil, active from 1993 until their split. Emerging from the same fertile underground that produced Sarcófago and Sepultura, the band operated in the raw, uncompromising vein of Brazilian black metal during the 1990s, contributing to one of South America's most distinctive extreme metal scenes.

Aversion is a thrash metal band from Coyhaique, in Chile's Patagonian Aysén region, signed to the Chilean label Rawforce Productions. Their debut full-length Chaotic Dreams (2015), recorded in Coyhaique in October 2012 and mastered at DMG Studio, blends early Scandinavian black metal aggression with driving thrash riffing.

Aversion is a thrash metal band from Coyhaique, in Chile's Patagonian Aysén region, signed to the Chilean label Rawforce Productions. Their debut full-length Chaotic Dreams (2015), recorded in Coyhaique in October 2012 and mastered at DMG Studio, blends early Scandinavian black metal aggression with driving thrash riffing.

Aversus formed in 2012 in Centenario, Neuquén, blending metalcore aggression with thrash metal riffing in a corner of Patagonia that has produced only a handful of extreme acts. The band is signed to Marfus' Records, a Neuquén-based label dedicated to thrash, death, and metalcore from the region.

Avitus was a melodic heavy metal band from Belo Horizonte, Minas Gerais, Brazil, founded in 2019 and active for a brief period before disbanding. Operating in Belo Horizonte's rich metal tradition, they pursued a melodic approach to heavy metal before splitting up around the early 2020s.

Avolia is a black metal act from Joinville, Santa Catarina, Brazil, formed in 2025. Their debut album Falls Upon the Earth, released in January 2025, delivers atmospheric and misanthropic black metal built around themes of apocalypse, esoteric mythology, and existential collapse — referencing Hyperborean imagery alongside relentless nihilism. A second album, Vazio, Mórbido, Sem Vida, followed later the same year, marking them as one of Brazil's more prolific new black metal voices.

Avuytor is a black metal project from Ubá, Minas Gerais, Brazil, formed in 2021. Extraordinarily prolific for a relatively new band, they have released a string of albums on Bandcamp including The Black Age, Adffectus Tenebris, Transcedental, and Gólgota – O Lugar da Caveira, exploring dark and spiritual themes across a body of underground raw black metal.