Apollyon was a heavy metal band from Formosa, Goiás, Brazil, formed in 2017. Operating in the interior of Brazil's central-west region, the band recorded material in the traditional heavy metal vein before splitting up, contributing to the modest but persistent metal activity outside the major urban centers of the country.

Apophanous is a progressive thrash metal band from São Paulo, Brazil, founded in 2015 by guitarist Tiago Lima, drummer Fabio Trevisan, and vocalist Vitor Alcantara. Their 2016 debut EP "Obliteration Has Come" weaves thrash aggression with progressive structures and even traces of Brazilian folk rhythms, exploring dark psychological themes — psychopathy, nihilism, schizophrenia — across four tracks influenced by Death, Nevermore, and Pantera.

Apophizys is a death metal band from Passo Fundo, Rio Grande do Sul, Brazil, originally operating under the name Slaughter Fleshcult before reforming with a new identity and releasing their debut full-length Into the Chaos in 2015. The album featured drummer Luana Dametto, who would go on to international recognition with Nervosa and Crypta, and the record established the band's blunt, gore-drenched approach to death metal. They continue to perform in the Rio Grande do Sul underground circuit.

Apoteom is a groove metal band from Santa Maria, Rio Grande do Sul, Brazil, whose roots trace back to a project started in 2007 by guitarists Pedro Ferreira and Maurício Torres. The band evolved from a thrash-heavy debut, Alienation (2013), through the groove-forward Paper God (2016) and into their third album Beautiful Lies (2023), steadily building a reputation in the southern Brazilian metal circuit. Their current lineup has been working on a fourth record.

Apotheke der Seele — German for "pharmacy of the soul" — is a black/post-metal project from Fazenda Rio Grande, Paraná, Brazil. Their 2022 release Aqua Corrosiva blends corrosive black metal atmosphere with the slower, textured dynamics of post-metal, exploring themes of inner desolation. The German-language name signals a deliberate aesthetic distance from everyday Brazilian metal convention.

Apu Rumi is a power/folk metal band from Huaraz, Ancash, Peru, formed in 2014 and signed to Metal Media X Productions. Notably cited by Metal Archives as the first metal band to record with lyrics entirely in Quechua, the native language of the Incas, the band grounds its music in Andean and Incan cultural themes. Their debut full-length "Puka Yaku" was released in 2016 to strong critical reception within the South American metal underground.

Apócrypha is a heavy metal band from Villa Giardino, Córdoba, with roots going back to the mid-1990s and a discography that includes the albums "Cabezas de Metal" (2003), "Convicción Salvaje" (2008), and "A Los Motores Del Metal" (2012). The band operates independently and has maintained an active Bandcamp presence, releasing material and continuing to represent the Córdoba province metal underground. Their sound sits squarely in traditional heavy metal territory with a distinctly Argentine character.

Apóstasis is a melodic black/death metal band from Brasília, Brazil, whose 2018 self-titled album draws on Nietzschean philosophy and misanthropy as lyrical touchstones. Their sound fuses the melodic sweep of Scandinavian black metal with death metal aggression, reflecting the increasingly ambitious underground scene in Brazil's federal capital. The band remains independent and active.

Aquaria is a symphonic power metal band from Rio de Janeiro, formed in 2002 under the original name Uirapuru before adopting their current identity, and their debut Luxaeterna (2005) and follow-up Shambala (2007) were both mixed and mastered by Sascha Paeth at Gate Studios in Germany. Their sound weaves orchestral arrangements and soaring vocals around themes drawn from Brazilian mythology, nature, and spirituality. After a decade-long hiatus, the band returned with the album Alethea in 2020, featuring vocalist Vitor Veiga and keyboardist Alberto Kury.