Crematory was a black/death metal band from São Paulo, Brazil, active in the early 1990s. The independent band explored Satanic themes and released rehearsal material before splitting up.

Crente is an extreme metal band from João Pessoa, Paraíba, Brazil, formed around 2022–2023 by members including Juan Apolinario (ex-Insecticida) and Marciel Argentina (Tiranicídio). The trio blends death and thrash metal under the sardonic self-description of "extreme gospel music," and released the compilation album Analects in October 2023, collecting their recorded output up to that point.

Creptum is a black metal band from São Paulo, Brazil, formed in 2003 after operating briefly as Nekros. Signed to Drakkar Productions South America, the band released their debut full-length Of Lies, Curses and Blood in 2016, followed by the EP Reborn in Flames (2017) and the sophomore album VAMA in 2020, a nine-track record drawing on occult and literary themes.

Crime is a duo from Santiago, Chile, whose sound draws equally from classic rock 'n' roll acts like Rose Tattoo and Motörhead and '80s punk. The band released their debut EP "First Crime" through German underground label Dying Victims Productions in 2018, followed by the "Wrong Woman Demo LP" in 2024.

Santiago's Criminal have been one of South America's most enduring and internationally respected extreme metal acts since forming in 1991, blending thrash metal's riff-driven aggression with death metal's brutality into a sound that earned them a major label deal with BMG and MTV Latino airplay during the mid-1990s. Frustrated with the South American music industry, the band relocated to Europe in 2001 and reconstituted as a Chilean-British outfit, continuing to release well-regarded albums including Minion (2005), which Terrorizer listed among the year's ten best.

Criminal Mosh is a thrash/crossover metal band from São Paulo, Brazil, formed in the late 2000s. The independent act plays politically charged thrash and crossover, carrying on the aggressive street-level style that has long been part of São Paulo's underground metal scene.

Criogenia is a heavy/thrash metal band from Caseros, in the Buenos Aires province of Argentina, with roots stretching back to the early 2000s. They released the EP "Almas del mundo" featuring tracks including "Siempre presente" and "Salvaje", followed by the full-length "Even Worst" in 2009, building a body of work in the tradition of Argentine underground metal.

Criptal is a heavy metal band from General Pacheco, in the Buenos Aires province of Argentina. Their discography on Metal Archives includes the albums El amanecer de la esperanza and Contra toda tempestad, the latter released in 2014.

Criptum is a thrash/death metal band from Formosa, in the remote northeastern province of the same name in Argentina. The band released their album Frenético in September 2015, channeling the aggressive sounds of classic South American thrash.