Bleed is a death metal band from Rancagua, Chile, formed in 2008 out of a shared love for extreme sounds and vintage horror cinema, influences that shape both their music and lyrical content. Their debut LP Ritual Decapitation appeared in 2017, followed by Magna Morte with a revised lineup including drummer Víctor Sepúlveda and guitarist Brandon Acosta, and the live document Rotten Sessions Live in 2023.

Bleed for Me are a Buenos Aires black/doom metal band who have been active, under various interruptions, since the early 2000s, releasing a self-titled album, "The End...", and the full-length "Reborn" in 2017. Their music dwells on themes of sadness, pain, and despair, rendered through slow, crushing doom riffs layered with black metal atmospherics. The band has remained independent throughout their career.

Bleeding is a death metal band from São José do Rio Preto, São Paulo, Brazil, listed on Metal Archives as an independent, now split-up act. The band was part of the underground death metal scene of Brazil's interior São Paulo state, operating without major label support during their active years.

Blessed is a death metal band from Porto Alegre, Rio Grande do Sul, Brazil. The band is notable in the local extreme metal history as former members went on to form Rebaelliun, a prominent Brazilian brutal death metal act that gained international recognition in the late 1990s. Blessed operated as an independent act and has since split up.

Blessed in Fire is a power metal band from Salvador, Bahia, Brazil, active since the early 2000s and independent. The band is part of the Brazilian power metal scene rooted in Salvador, with early releases including a rehearsal recording titled "Dead & Alive" (2003), and continues to be active in the regional metal community.

Blind One Came were a death metal band from Bogotá, Colombia, active from 2009 until splitting up sometime after 2013. Their sole full-length, Remnants, was released in 2010, and the band appeared on the Patria Extrema Vol. 1 compilation in 2013.

Blindado are an Argentine heavy metal band founded by members Charly, Jorge, Adrián, and Juan, who released their debut album "Distorsión" in 2007 through Hurling Metal Records, featuring driving riffs, extended guitar solos, and even a heavy metal take on the tango standard "Yira-Yira." A second album, "En Las Calles", followed on the same label before the band returned in 2017 with "Argentina Despierta", an independently released record with politically charged lyrics addressing Argentine society. They remain active today.

Blitzkrieg is a raw black metal band from Mossoró, Rio Grande do Norte, Brazil, formed in 2002 and now split-up. The band operated independently within the Brazilian underground black metal scene, releasing material through their Bandcamp page before ceasing activity.

Blixten is a female-fronted heavy metal band from Araraquara, São Paulo, Brazil, formed in 2017 by vocalist Kelly Hipólito. Drawing heavily on classic 1980s metal acts such as Iron Maiden, Dio, and Motörhead, the band released their debut EP "Stay Heavy" in 2018, featuring five original songs recorded at Távola Studio in Araraquara. The group has been notable in the local scene for championing women's visibility in Brazilian heavy metal.