Haitón del Guarataro is a one-man black/doom metal project from Buenos Aires created by Alexis Uribe in 2024, drawing exclusively on Latin American folklore — myths, legends, and spectral figures — as lyrical subject matter. Uribe self-handled all instrumentation, production, and artwork on the debut Fathomage Chants (August 2024), which explored Venezuelan legends, and the follow-up Pombero (May 2025), a five-track conceptual work centered on the Guaraní mythological creature of the same name.

Hellige is a black/sludge/doom metal project from Morón, Buenos Aires, that began as raw black metal recordings before evolving into a heavier, more atmospheric sound. Their 2021 album "Camino de agua", released through Dying Sun Records and mixed and mastered by Facundo Brinville, is the product of material written and recorded between 2014 and 2021.

Heléh is a traditional doom metal trio from Córdoba, Argentina, featuring Gonzalo Civita on vocals, Matias Takaya on guitar and bass, and Joahn π on drums. The band released their self-titled debut album on April 6, 2022 — a five-track, 38-minute record recorded and mixed by Takaya at AV Estudio in Córdoba, drawing on the old-school doom of Black Sabbath, Candlemass, and Cathedral.

Hernán D'Ambrosio is a doom metal and acoustic artist from Necochea, Argentina who released the EP "El espíritu del fuego" in April 2022, produced and recorded between 2021 and 2022 with a self-described doom atmosphere and introspective concept. He also plays guitar and vocals in the Necochea sludge/doom band Montibus alongside drummer and multi-instrumentalist Facundo Bávaro.

Heráldica de Mandrake is a doom metal band from Chile, evolving out of the earlier project Mandrake (2014–2017), whose members include vocalist and guitarist Francisco Visceral Rivera and drummer Cristian Rivera. The band has released several albums blending crushing doom with progressive and experimental elements, including "Esto también pasará" (2019) and "Nunca bastó con rezar" (2025), with their 2024 compilation "Magia Subversiva Metálica" issued on double CD by Paragon Records.

Hexen Sabbat is a dark doom metal band from Rio de Janeiro, Brazil, formed in 2024. The band released their debut album Dramatic Dreams on April 11, 2024, through Eclipsys Lunarys Productions, recorded at HR Studio and Pré-Sound Studio with production by Orion Gobath and David Malkuth. Their sound blends slow, heavy doom textures with occult and melancholic themes.

Homicidio is a death/black/doom metal band from Goiânia, Goiás, Brazil, active since the mid-1990s. The band has built a long-running underground catalog, including the album Impuros (2009), Angustia Infinita (2013), and The Pact of Fire (2020), all self-released and available on Bandcamp.