Black Side is a heavy metal and hard rock band from Haedo, in the Buenos Aires metropolitan area, who have been active since 2007. Over the course of their career they have released four albums — De que manera terminar (2007), Evolución (2009), Take Me Away (2014), and Atlantis (2017) — building a steady following in the Argentine heavy rock underground.

Black Tears was a viking metal band from Neuquén, in Argentina's Patagonian region, catalogued on Encyclopaedia Metallum and dedicated to themes of Norse mythology and epic battles. The band was one of the few acts in Argentina's deep south to work within the viking metal tradition before splitting up.

Black Tears of the Fallen is a gothic doom metal band from Rio de Janeiro, Brazil, formed in 2018 and fronted by Cain Reis. Drawing influence from classic doom acts and the imagery of Dante's Divine Comedy, the band blends heavy riffing with deep, dramatic vocals. Their second album "Nephilim at Your Doorstep" was released in 2020, followed by "Beauty in the Dark" in 2024, both recorded at Calabouço Estúdios in Rio de Janeiro.

Black Vomit is a blackened thrash metal band from Maceió, Alagoas, Brazil, formed in 2010 and active as an independent act. The band draws on the raw, aggressive sound of Brazilian extreme metal tradition, fusing black metal atmosphere with thrash speed and aggression. They have appeared on tribute compilations within the Brazilian underground scene.

Black Vul Destruktor is a black metal band from Neuquén, Argentina, known for a primitive, tribal sound rooted in South American black/death metal traditions. Their catalogue includes the EP Bestial Obscure Metal Kaos and the compilation Ov Temple ov Vul, with the LP Beyond Time and Portals of Death released through Sweden's Blood Harvest Records.

Black Vulture is a raw black metal and experimental band from Rio de Janeiro, Brazil, active since 2009. The trio has been prolific on Bandcamp, releasing a string of albums including "Nossas Virtudes" (2009), "Depois Disso" (2013), and "Enquanto Remédio" (2016), all exploring lo-fi black metal aesthetics with an experimental edge. The band operates independently within the Brazilian underground metal scene.

Black War is a black metal band from Taubaté, São Paulo, Brazil, tracing its roots to 1996 when members Holykran and Hammer founded a project called Necronomicon, before adopting the Black War name. The band's lyrical themes center on anti-Christianity, misanthropy, and mysticism. Their debut album "Winter Sorrow" was released in 2009 through Hammer of Damnation, incorporating material from their 1999 demo "As the Darkness Prevails."

Black Wind is a black metal band from Guarulhos, São Paulo, Brazil, formed in 1999 and now split up. The band operated as an independent act within the Brazilian underground black metal scene. Their Metal Archives entry documents them under contact for Arch Devil Lucfatanaz in Guarulhos, SP.

Black Witch is a stoner and doom metal band from Mossoró, Rio Grande do Norte, Brazil, formed in May 2015. The band features Lorena Rocha on vocals alongside Rafaum Costa on guitar, and draws on 1970s-style heavy rock recast through down-tuned, doom-laden arrangements. Their discography includes the debut EP "Aware" (2015), the full-length "Solve et Coagula" (2016), and the two-part release "The Spiral" (2021).