Hostinalia is an extreme heavy metal band from the Pernambuco metal scene in northeastern Brazil, formed in 2020. The band released the album "Millions of Orphans" alongside singles including "Morbid Anxiety" and "Black Hole", blending melodic black and gothic metal elements.

Howenh is an instrumental heavy metal project from the Santiago metropolitan area of Chile, founded in 2015 by guitarist and composer Iván Aguayo. The band blends doom, dark wave, and post-rock into an atmospheric, largely instrumental sound, documented across two albums: Kren (2015) and Sheol (2018).

Hranice Abyss is a death/thrash metal band from São Paulo, Brazil, formed in 2020 by vocalist Vic Ferreira and guitarist Henrique de Fina, with bassist Bruno Nicolozzi and drummer Lucas Coltri rounding out the lineup. The band released their debut EP "Aphagy" in August 2021, a fully self-produced six-track effort that drew comparisons to The Black Dahlia Murder, Necrophagist, and Slayer, earning an 8/10 from Metal Temple. Their DIY approach extended to producing and directing their own music videos, including the singles "Violation of Human Condition" and "Flawless Oblivion".

Huaychivo is a stoner/doom metal project from São Paulo, Brazil, created by musician and designer Marcel Vieira. The project released its debut album "The Five Agreements" in April 2016, a five-track instrumental record featuring heavy downtuned riffage rooted in the stoner and doom metal tradition.

Hugin Munin is a melodic death metal band from Santos, São Paulo, Brazil, formed in the late 2000s under the original name Gungnir before adopting their current Norse mythology-themed name. The band released the EP "Ravens Empire" and the full-length album "Ten Thousand Spears for Ten Thousand Gods" (2011), the latter receiving a perfect score of 10/10 from Brazilian metal outlet Whiplash.com. They have performed as a support act for international acts including Krisiun, Korpiklaani, and Eluveitie, and released the EP "Mountainbreaker" as the first installment of a planned trilogy.

Huinca is a folk metal band from Santiago, Chile, formed in 2001 from the remains of an earlier project called Stonehenge, blending heavy metal with indigenous Chilean musical traditions including Ngillatunes, Huaynos, and Tonadas. The band has released three albums — Huinca (2006), Sic Semper Tyrannis (2012), and América Letrina (2019) — and has toured internationally in South America and Europe, earning best-show recognition at Poland's Slot Art Festival.

Huma is an alternative post-metal band from Natal, Rio Grande do Norte, Brazil, with a lineup that includes vocalists, dual guitars, bass, drums, and synth. Their 2025 debut album Afronta, recorded at EMUFRN and Black Hole Studio in Natal, blends doom and post-metal textures with Portuguese-language lyrics and features a Lana Del Rey cover alongside five originals.

Human Abomination is a death metal band from Belo Horizonte, Minas Gerais, Brazil, active since 2018. The band released their Promo 2018 in July of that year, featuring the tracks "Joys of Mass Murder" and "Process of a Methodical Extermination", and followed it with a subsequent full recording titled Ressurgindo Pós Caos documented in the Metal Archives.

Human Annihilation is a brutal death metal band from Valencia, Venezuela, formed in 2018. The band has released the 2018 EP "Buried Alive" and the 2020 EP "War Inside", delivering brutal death metal rooted in themes of aberrations, madness, and the human condition. They remain independent and active on the Venezuelan extreme metal underground.