Human Machine of Hate is a death/thrash metal band from São Paulo, Brazil, formed in 2018. Their debut release, The Negativity Core (December 2018), is a five-track record blending death and thrash metal with politically and socially critical Portuguese- and English-language lyrics.

Human Meat Grinder is a Buenos Aires-based slam and brutal death metal project formed in 2023, driven primarily by multi-instrumentalist Vera Arianna Stork with Lord Swine contributing vocals. The band released their debut full-length "Relentless Human Nullification" in March 2023 and followed it with the EP "INHUMAN" in February 2025.

Human Meat Grinder is a one-person death metal and grindcore project from São Paulo, Brazil, created by Rafael Douglas. Their debut EP Matadouro (December 2021) blends death metal and grindcore with sociopolitical lyrics documenting the catastrophic social and political conditions faced by Brazilians, with all tracks written, recorded, and mixed by Douglas at home.

Human Misery is a deathgrind band formed in 2021 in Piedecuesta, Colombia. The band released the demo Corrosión del orden in 2022 followed by the demo Torned Apart in 2023, and appeared on the split compilation Grindcore (Isn't) Mediocre in 2024.

Human Plague is a death metal band from Santa Maria, Rio Grande do Sul, Brazil, formed around 2013. The band released their debut recording Marching Through the Fields of Desolation in December 2013, followed by the full-length Black Death, and the compilation Harvest of Hate in November 2019, which compiled material recorded between 2014 and 2019.

Human Stench was a crust/death metal/grindcore band from Uberlândia, Minas Gerais, Brazil, active from 2016 until their split. The band released the promo cassette Perspective of Displeasure in November 2017, recorded earlier that year, featuring eight tracks of lo-fi noise-inflected crust grind.

Humanal is a progressive groove metal band from Curitiba, Paraná, Brazil, formed in 2016, featuring vocalist Tati Klingel alongside guitarists André Lazzaretti and Rafael Barcellos, bassist Mauricio Escher, and drummer André Preto. Their debut full-length album Delirium, released in August 2025, spans ten tracks addressing themes of mental health, addiction, oppression, and technology, with Klingel also serving as the album's producer.

Humanicidio was a thrash and heavy metal band from Rosario, Argentina, whose lineup included David Sanchez on guitar and vocals, Nicolás Sanchez on lead guitar, Franco Mena on bass, and Diego Forteaga on drums. The band released a four-track demo in May 2016 and a self-titled album in 2018 before splitting up.

Humanimal is a melodic power metal band from Buenos Aires, Argentina, originally founded in 1992 with vocalist Juan Soto and core guitarists Pablo G. Soler and Mariano Mazzei, and later reformed. The band released the full-length album "El camino de los sabios" in 2002 and contributed tracks to multiple Argentine metal tributes, including "Maténlos a todos — Tributo argentino a Metallica" in 2003.