Hyperborean is a black metal band from Ponta Grossa, Paraná, Brazil, active since the early 2000s and signed to Arte Ancestral Records. The band released the cassette "Ravens Weeping over Path" in 2013 and followed it with the full-length "Rising from the Dark Past" in 2014 on the Pagan War label, a ten-track record running nearly 44 minutes. Their lyrical themes have shifted over the years from Satanism to philosophical influences including Nietzsche and Goethe.

Hypernaut is a stoner rock and metal band from Lima, Peru, formed in 2018 out of an earlier project called Bad Hombres. Drawing on the heavy riff traditions of the 1970s and 1990s, the band released their debut full-length Ozymandias in 2020, showcasing a raw, DIY-driven approach to riff-based rock that has established them within the Lima stoner and heavy psych scene.

Hysteria Blossom is a Brazilian solo atmospheric black metal project founded in 2025 by Rafael Viana, who records under the pseudonym Fael Noveris. The project centers on dark, introspective themes delivered through atmosphere and emotional weight rather than traditional band structures, with the debut release "Veil of the Forest" among its early output.

Hëiligen is a traditional heavy metal band from Santiago, Chile, formed in the mid-2010s with a mission to carry forward the legacy of 1980s heavy metal in the style of Iron Maiden and Judas Priest. The band released the EP "Return to the Battle" before issuing their debut full-length "Shadows in the Church" in 2020 through Tradition Metálica Records, with lyrics addressing cosmology and critiquing organized religion.

Hënkel is a heavy metal band from Villa Mercedes, San Luis, Argentina, active since around 2010 and known for their 2011 demo "Cerca del Final". Their debut album "Génesis", recorded between October 2018 and March 2020 with drums and vocals tracked at Estudio DAB in Villa Mercedes, was released in 2021.