Blasfemador is a speed/thrash metal band from Fortaleza, Ceará, Brazil, known for combining the aggression of 1980s extreme metal with horror and occult themes, and for performing entirely in Portuguese. Their discography includes the full-length "Cosmofobia" (2021) and the 2026 album "Malleus Maleficarum," which has been described as their most ambitious release to date. The band is not to be confused with a separate Blasfemador project from Alfenas, Minas Gerais.

Blasphemaniac is a black/thrash metal band from Atibaia, São Paulo, Brazil, playing what they describe as old school black speed metal rooted in blasphemy, satanism, and witchcraft. The band has released several records including "Lust Possession" (2021), "Bestial Occult Ceremony" (2022), and "Night of the Necromancer" (2023) via Black Hearts Records and Death Defier Productions. They performed at the Brazilian Harmageddon 2024 festival in São Paulo alongside international acts such as Sabbat.

Blasphematorium is a heavy/speed/black metal band from São Paulo, Brazil, formed around 2020 and signed to Tales from the Pit Records. The band released a self-titled debut album in February 2020, drawing on occult and blasphemous themes in the vein of classic South American extreme metal. Their sound fuses the drive of speed metal with raw black metal atmosphere.

Blasphemer is a death/thrash metal band from Santo André, São Paulo, Brazil, with roots in the local extreme metal underground. The band appeared on the "Headthrashers Live" compilation recorded at the Municipal Theatre in Santo André alongside Necromancia, MX, and Cova, documenting the early São Paulo thrash scene. Their lyrical themes centered on satanism, evil, war, and death.

Blasphemia was a black/thrash metal band from San Felipe, Valparaíso, Chile, with lyrical themes centered on apocalypse, anti-religion, and chaos. The band released two demos and one EP between approximately 2001 and 2005 before splitting up.

Blast Bitch is a Buenos Aires death metal and grindcore trio featuring vocalist Constanza Liberte, drummer Arihell Ledo Agüero, and guitarist Pely Macchi. Their 2019 debut album Sociedad Manipulada — recorded at Tribal Record in Ramos Mejía — delivers 11 tracks addressing police repression, violence against women, and institutional corruption.

Blasterror is a death/grind band from Belford Roxo, Rio de Janeiro, Brazil, formed in 2014 and now split-up. The project blended brutal death metal with grindcore, releasing material including the 2016 EP "20 Minutos de Kaos, Ódio e Revolta" via their Bandcamp page. The band operated as an independent act within the Brazilian extreme metal underground.

Blasthrash is a thrash metal band from São Paulo, Brazil, active since the early 2000s and signed to Dies Irae Records. Drawing heavily from 1980s thrash influences including Kreator, Exodus, and Nuclear Assault, the band released albums such as "Violence Just for Fun" and "Fake News", maintaining an old-school aggressive thrash sound across their career.

Blazing Dog is a traditional heavy metal band from Brasília, Brazil, formed in 2009 and playing in the style of classic acts like Judas Priest, Iron Maiden, and Manowar. The band recorded their album "Deus Ex Machina" at Orbis Studio and Jam's Studio in Brasília, covering lyrical themes of history, war, literature, and metal. They remain an independent act within the Brazilian capital's metal scene.