Baphometh were a black metal band from Porto Alegre, Rio Grande do Sul, active in the early-to-mid 2010s before splitting up. Porto Alegre has produced a distinct strand of Brazilian black metal influenced by both the raw South American tradition and Northern European styles, and Baphometh operated within that underground, releasing material independently with occult and adversarial themes.

Baphometron is a Black Metal band from Manizales, Colombia, founded in 1998 and currently based in Pereira, Risaralda. They operate under Dark Circles Productions and released their debut demo "Baphomilenios" in September 2023, a two-track recording sung in Spanish.

Barrabás is a black metal band from Assis, São Paulo, whose music is built around the cosmic horror mythology of H.P. Lovecraft. Their 2013 full-length The Arrival of Yog-Sothoth, released on Nyarlathotep Records with members Kadax Azuhos, Paulo Portes, and Oksarrak, works through the entire Lovecraftian pantheon — Cthulhu, Shub-Niggurath, Nyarlathotep, Azathoth — in nine tracks of raw, ritualistic black metal.

Basmasura is a black metal band from Manaus, in the Brazilian Amazon state of Amazonas. One of the few metal acts from the isolated northern city, the band operates in the raw, underground tradition of Brazilian black metal with minimal web presence outside their Metal Archives listing.

Beastkrieg is a bestial black thrash metal band from São Carlos, São Paulo state, Brazil, formed in 2013. Drawing from the classic South American extreme metal lineage — Sarcófago, Impurity, Holocausto, and Mystifier — alongside old-world forebears Venom, Bathory, and Hellhammer, the band plays blasting, blasphemous black-thrash rooted in lust, Satan, and chaos. Their 2014 album "Graveyard Rite (Alcoholic Ceremony of Baphometic Worship)" captures the raw, primitive spirit they operate in.

Beelzeebuth was a death/black metal band from São Paulo, Brazil, that formed and dissolved within the 2020s as an unsigned underground act. Distinct from the similarly-named Beelzeebubth from Salvador, this São Paulo project operated in the raw, extreme end of Brazilian death-black metal — a tradition with deep roots in the city's prolific underground scene — before splitting up after a brief run.

Behead Christ was a black metal band from Santiago, Chile, active from 1998 until their split in 2021, with lyrical themes centered on blasphemy and Satanism. Their discography spans nearly two decades and includes Your Will Is Mine... Satan!!! (1999), In Your Cross! In Your Anus!, and a split release with fellow Chilean black metal act Hades Archer. They were one of the longer-running bands in Chile's underground black metal scene.

Behtria is a black metal band from Palpalá, in the Jujuy province of northwestern Argentina, fronted by vocalist Gaby and anchored by drummer Mariela. The duo are noted for their outspoken feminist stance within Argentina's metal scene, with Mariela helping to organize the Obnoxious Fest, a feminist metal festival in Palpalá, and both members regularly protesting against femicides in their city.

Bestial 666 is a black metal band from Goiânia, Brazil, with Satanic lyrical themes. The band is listed on Encyclopaedia Metallum and has since split up, leaving a short-lived but documented presence in the Brazilian underground black metal scene.