Diablero is a black metal and ambient project from the far southern coastal region of Rio Grande do Sul, Brazil, operating out of Praia do Hermenegildo and Santa Vitória do Palmar near the Uruguayan border. The project released the demo "Escuridão Selvagem" in 2014 and has remained active as an independent underground act.

Diabol is a black/thrash metal band from Vallenar, Atacama, Chile, founded in August 2020 and rooted in an ultra-blasphemous street black-and-roll aesthetic drawing from Venom, Motörhead, Hellhammer, Darkthrone, and Discharge. Their discography spans the "Demonomania" demo (2020), the "Lunatic Abominations" EP (2022), a contribution to the four-way split "Latinamerican Slaughter" (2021), and the full-length "Graveyard Backtery" (January 2025).

Diabolic Force is a blackened thrash metal power trio from Rio de Janeiro, Brazil, drawing comparisons to first-wave acts like Venom, Bulldozer, and Motörhead with a raw, Satanic aesthetic. The band released their debut full-length "March to Calvary" in 2009, followed by "Praise of Satan" in 2017 through Hells Headbangers Records. Their sound blends blackened death and thrash metal with anti-Christian and occult themes.

Diabolical Blast is a black metal band from Chía, Cundinamarca, Colombia, formed in 2012 with lyrical themes of Satanism, anti-Christianity, blasphemy, and existentialism. The band issued their first demo A la sombra de la muerte in 2015 and released their debut full-length Ancient Rites to the Moon in 2020. Their track appeared on the Legiones de Metal - Forging the Black Steel cassette compilation in 2023.

Diabolical Evil is a one-man black/speed metal project from Araripina, in the northeastern Brazilian state of Pernambuco, operating under the sole membership of Rodrigo Infërnäl Ridër. Launched in late 2020, the project draws on old-school influences including Sarcófago, early Bathory, Slayer, and Mercyful Fate, blending first-wave black metal with thrash and speed metal aggression. The band released the "Cursed by Blood" 7-inch in 2022 through Vicious Witch Records, earning coverage from Decibel Magazine.

Diabolical Hate is an independent death metal band from Campo Grande, the capital of Mato Grosso do Sul in central-western Brazil. The band plays straightforward death metal with themes centered on death, anti-religion, and Satanism, operating without label backing in the Brazilian underground scene.

Diabolical Mind is a metal band from Teófilo Otoni, Minas Gerais, Brazil, whose sound evolved from black metal in its early period toward death metal in later years. The band's logo was notably designed by renowned metal artist Christophe Szpajdel, and their lyrical themes center on Satanism, blasphemy, and hatred. The project has gone through multiple active periods throughout its history.

Diabolical Possession is a death metal band from Pindamonhangaba, in the state of São Paulo, Brazil, playing extreme metal with strongly anti-Christian lyrical themes. The band released the demo "Caos Caos" in 2005, featuring tracks such as "Gates of Hell" and "Exorcising Jesus Christ," and has appeared on local bills alongside international acts including Cannibal Corpse. They have remained active in the Brazilian underground death metal scene since their formation.

Diabállein is a black metal band from Monte Alto, São Paulo, Brazil, whose name derives from the Greek root of the word "diabolos," and who cite influences including Sarcófago, Darkthrone, Mayhem, and Venom. The band released their fourth full-length album, "Anti Sacra," in early 2025, recorded at Arte Estúdio in Monte Alto and distributed through Sangue Frio Produções.