Ancient Land were a pagan black/death metal band from Embu das Artes, on the outskirts of São Paulo, who blended black and death metal with symphonic elements and themes of freedom, paganism, nature, and anti-Christianity. Their Bandcamp catalogue includes the releases In My Solitude…, In the Name of the Cross…, The Symphony of War, and Destroys the Lies before the band dissolved.

Anesthesia is a death metal band from Caxias do Sul, Rio Grande do Sul, a city with a strong extreme metal tradition in southern Brazil. Formed in 2008, the band plays direct, aggressive death metal rooted in the brutal underground scene of the Rio Grande do Sul state.

Angel Distress is an atmospheric doom/death metal band from Belo Horizonte, Minas Gerais, crafting music described as dark, heavy, and majestic with an epic and melancholic character. The band released their debut album "Ligna In Inani" in 2025 through Vision of God Records, having built anticipation with the earlier single "Fallen in Pain".

Angerstorm are a death metal quintet from Quillota, Chile, who gained regional recognition when they were invited to open for Mexican-American extreme metal band Brujería at a show in Valparaíso in April 2022. The band, whose members include drummer Darko Fernández, have continued to anchor the local underground scene, most recently performing at the Kill-ota Metal Fest III in San Pedro in February 2026.

Anima Inmortalis is a death metal band from Santiago, Chile, whose name means "Immortal Soul" in Latin. The band released the full-length album Everlasting in 2005 and followed it with the EP Understanding the Darkness in 2010 before issuing More than Just Flesh and Blood in 2011 through Australis Records, recorded at 15 Hz Studios in Santiago. Their lyrical themes explore astral concepts, philosophy, and the nature of life and death.

Annihilation is an old-school death metal band from Osasco, São Paulo, fronted by the vocalist known as Vomit Blasphemy Tormentor. The band deals in raw, aggressive death metal in the tradition of Brazil's extreme metal underground, and released the album "Evil Churches" in 2024.

Anopheles is a death metal band from Rio de Janeiro with roots going back to the mid-1990s Brazilian extreme metal scene. The band recorded their foundational release "Abstention of Life" in May 1995 at Estúdio Manhatan in Rio de Janeiro, an album that has since circulated among collectors of rare Brazilian demo recordings. Their lyrical themes deal with agony, suffering, and the darker dimensions of humanity.

Anorkia was a death metal band from Curitiba, Paraná, Brazil, active in the early 2000s before splitting up. The band operated as an independent act within Brazil's underground death metal scene, releasing a self-produced demo in the mid-2000s with lyrical themes grounded in realism.

Anti Human is a Black/Death Metal band that formed in Cali, Colombia in 2009, later relocating to Madrid, Spain. The band released their debut full-length Black Death in 2013, followed by Reflections of the Black Sun in 2021 via StillBorn Twins Records.