Kamaq is a black metal band from Lima, Peru, formed in 2021, whose name draws from Andean cosmology — "Kamaq" refers to the animating force or creator spirit in Quechua tradition. The band released their debut full-length "Los que vinieron antes" in 2024, channeling themes of nature and earth cult through their black metal sound.

Kamikaze is a Buenos Aires heavy metal band originally founded in 1985 by vocalist Enrique Gómez Yafal and guitarist Miguel Ángel Oropeza, both formerly of 100DB, alongside bassist Gustavo Perugino and drummer Claudio Gabriel Parolari. The band released classic Argentine metal albums No me detendrán (1988), Víctima del Rock (1989), and Kamikaze III (1992), later reuniting and issuing Dueño de los Cielos in 2011.

Kamikaze is a heavy metal and hard rock band from Belo Horizonte, Minas Gerais, originally formed in 1984 and reactivated in 2016. The band released a self-titled EP in 1986 featuring the track "Machado de Guerra," which became an anthem for an entire generation of Brazilian metal fans, and followed it with the full-length Kamikaze II in 1990 on Cogumelo Records. A 2023 reissue collected both early records alongside six previously unreleased tracks from 1994.

Kampfwagen is a black/death metal band from Barranquilla, Colombia, formed in 2016 and signed to DevilMind Productions. The name translates from German as "battle vehicle," and the band explores themes of death, blasphemy, and ritual darkness, with their 2019 demo "Stalking of Death" as their primary release.

Kandelabrum was a doom and gothic metal band from Rio de Janeiro, Brazil, active from 2001. Their album Apocrypha, released in September 2001, contains seven tracks including "Rigor Mortis," "Whispers of Lilith," and "Pure Silence Perfect Darkness," drawing on funeral doom and gothic metal influences within the Brazilian underground scene.

Kanvass is a black metal duo from Santo André, São Paulo, consisting of Ammonoch (guitars, bass, vocals) and drummer Morbus. The band released their debut EP The Southern Thunder Roars in 2014 and have since recorded several albums including Downfall of Individuality and Generation of Deserters (2023), the latter released through Hammer of Damnation. Their sound draws deliberate comparisons to the stripped-down Norwegian orthodoxy of Gorgoroth, Tsjuder, and Urgehal.

Kaosharmony is an extreme metal band from Hortolândia, São Paulo, founded by Jeff, who handles songwriting and the band's creative direction. The project draws from European death metal influences and centers its lyrics on the historical confrontation between indigenous peoples and colonizers, with releases We Stand To Battle and Battlefields available on Bandcamp.

Kaotk is a technical death metal band from Recife, Pernambuco, formed in 2017 by Marcio Pereira, Willams Reis, Stenio Lima, Michel Santos, and Yarkko Sena. The band debuted with the EP Nascido em meio ao caos, recorded at J.A. Studio in Recife and released in June 2017, showcasing tightly constructed riffs, virtuoso guitar solos, and guttural vocals exploring themes of the human psyche.

Karadima is a grindcore/death metal band from the Valparaíso region of Chile, whose name references Fernando Karadima, the Chilean Catholic priest found guilty by the Vatican in 2011 of sexually abusing minors — a deliberate act of social provocation consistent with grindcore's tradition of confrontational naming. The band released their debut full-length Desde hoy seré tu dios in 2018, followed by the nano-EP Torcido and the album Mansión Guarén, both in 2020, all produced through Calaka Records.