Chacina is a thrash metal and crossover band from Piracicaba, São Paulo, Brazil, originally founded in 1990 and reformed around 2004. The band released the "Gaza" EP in 2015 and appeared on Brazilian underground compilations including "Rock n' Roll Delo Tercero Mundo Vol. 1" (1995) and "Stars on the Rock" (2001).

Chakal is a thrash metal band from Belo Horizonte, Brazil, formed in 1985 and one of the pioneering acts of the Brazilian extreme metal scene. Their 1987 debut album Abominable Anno Domini, released on Cogumelo Records, was recorded at JG Studios in Belo Horizonte and has been described as one of the most vicious and accomplished Brazilian thrash/black metal albums of its era. After a long hiatus, the band reunited in 2002 and has continued releasing material, including the albums Deadland (2003), Demon King (2004), and Destroy! Destroy! Destroy! (2013).

Chant of the Goddess is a Brazilian stoner/doom metal band with sludge metal influences, formed in 2017 in the São Paulo state region. The band released a self-titled debut album in 2017, produced by Sebastian Carsin and Renan Angelo, and appeared on the compilation Doomed & Stoned Latinoamerica Vol. I (2018) with the track "Sanctuary of The Scarlet Night."

Chaos Realm is an independent thrash and speed metal band from Barbacena, Minas Gerais, Brazil. The band operates as an unsigned act within Brazil's underground thrash metal scene, with lyrical themes centered on death, blood, earth, and souls.

Chaos Synopsis is a thrash/death metal band from São José dos Campos, São Paulo, Brazil, formed in 2006. The band has released multiple full-length albums including Kvlt ov Dementia (2009), Art of Killing (2013), Seasons of Red (2015), and Gods of Chaos (2017), and has toured in both Brazil and Europe. Their approach blends thrash and death metal while drawing thematic concepts from each album — ranging from madness and serial killers to historical conquerors.

Chaosface is a thrash metal band from Natal, Rio Grande do Norte, Brazil, formed in 2014. The band released their debut EP The Practice of Chaos in July 2014, followed by a re-recorded version titled The Practice of Chaos Revisited in October 2015, produced at Slowpeak Studio with an updated lineup.

Chaosfear is a groove and heavy metal band from São Paulo, Brazil, founded by brothers Fernando and Eduardo Boccomino, who originally performed as Sick Mind before adopting their current name. The band released the full-length album Be the Light in Dark Days in 2020 via Careless Records and notably recorded a cover of Exodus' "The Toxic Waltz" featuring vocalist Steve "Zetro" Souza. Their sound draws from the groove-oriented modern thrash tradition, with influences from Sepultura's later catalog.

Chaoslace is a metal band from Santo André, São Paulo, Brazil, formed in 2015, whose sound evolved from thrash/death metal into brutal death metal. The band operates independently with lyrical themes covering anti-religion, war, catastrophe, and human conflict.

Chaosophia is a depressive black metal band from San Martín, Buenos Aires, Argentina, formed around 2009–2010 with a core trio of Kanaglia on vocals, Kaos on guitar, and Kosmos on drums. The band released a demo called "Funeral March" in 2009 and appeared on two split releases through the Argentine underground label Black Noise Records: "Extremities of an Abyss" (with La Torture Des Ténèbres, 2016) and "6th Extinction" (with Cryptogenus and Parasomnia, 2017). Both split releases were limited-edition physical formats typical of the Argentine black metal underground.