HeavenFalls was a female-fronted melodic power metal band from Rio de Janeiro, featuring vocalist Sabrina Carrión alongside guitarists Victor Montalvão and Pedro Mota, bassist Carlos Jannarelli, keyboardist José Luiz Faulhaber, and drummer Rodrigo Fontoura. Their debut full-length Ethereal Dreams (2003), released through Hellion Records and recorded at Fast Forward studio in Rio de Janeiro, showcased Carrión's melodic yet powerful voice across a progressive power metal framework. The album's reception earned the band a supporting slot for Iron Maiden's 2004 show in Rio de Janeiro.

Heavenheim is an Argentine extreme metal project formed in 2024 with a lineup of Kai (vocals), Dave (guitar), Andy (bass), Gisa (drums), and Leon (keyboards), blending symphonic black metal and melodic death metal with Christian metal themes. The band released the album United Forever on December 2, 2024, featuring tracks including the 13-minute title piece, followed by the single Take Your Cross in February 2025 and the two-track EP Have You Ever Heard of the Cross in November 2025.

Heavenless is a deathcore trio from Mossoró, Rio Grande do Norte, Brazil, formed in 2017. The band — comprising vocalist/bassist Kalyl Lamarck, guitarist Vinicius Martins, and drummer Vicente Andrade — released their debut album Whocantbenamed in early 2017 through Rising Records, recorded at Mad Butcher Studio in Mossoró. Their sound blends deathcore with thrash and hardcore influences, exploring themes of religious manipulation and societal evil.

Heavenly Kingdom is a heavy/thrash metal band from Cubatão, São Paulo, Brazil. The band's lineup includes Brenno Lima, Leandro Dias, Vagner Mesquita, and Bruno Conrado, and their discography spans multiple full-length albums including Tears From The Sky, Nature In Fury, and Slave Of Time, released through Heaven's Music.

Heavy Smasher is a traditional heavy metal band from Fortaleza, Ceará, Brazil, formed in 2018. The quartet — featuring Nildo Gomes on vocals, Nando Smasher and Diego Quântico on guitars, and Luís Paulo on bass — debuted with the EP Smasher And Loud in 2018 before releasing their self-titled full-length album in 2021, recorded at VTM Studio in Fortaleza. Drawing on classic influences including Dio, Iron Maiden, and Judas Priest, the band pursues a sound rooted in the NWOBHM tradition.

Hecate is a black metal band from Fortaleza, Ceará, Brazil, whose lineup features vocalist Lord Thanatos, guitarist Pagan Priestess, drummer Daymon, and bassist Misantropico Herege. The band released the full-length album Odes ao Oculto in 2003 and the EP V.I.T.R.I.O.L. in 2014, with lyrical themes centered on paganism, occultism, and satanism. They are signed to Sphera Noctis Records.

Hedendom is a pagan raw black metal project from Buenos Aires, driven by vocalist and lyricist Javert Nihil with session guitar and bass contributions from Gon Rillo. The project released its self-titled demo in 2015 — a four-track cassette featuring songs including "The Shadows," "Whisper in the Night," and "Spectral Fall" — which was distributed physically through Triumphant Cadaver Label in Sweden. Javert Nihil has run multiple one-person projects since 2010, with Hedendom as the primary black metal outlet.

Hedenskrig was a Viking and pagan black metal band from Santiago, Chile, formed in 2003 and driven by themes of Norse mythology, war, and ancient legends. The band recorded a demo series in 2003 and 2004 and later released the "Warsongs" demo in 2013, featuring tracks such as "Warsong," "Ambush in the Woods," and "Odin Calls to War."

Hedor is a brutal death metal band from Ibagué, Tolima, Colombia, active since 2004 and signed to Mutilated Records. Their debut EP Xenofobia arrived in 2009, showcasing a two-piece assault built around dominant riff intensity and relentless drum blasts, drawing comparisons to Colombian extremists Internal Suffering. Lyrically, the band tackles themes of human behavior, confrontations for power, and a crisis of national identity.