Dementors are a death/thrash metal band from Santiago, Chile, whose lyrics explore themes of blasphemy, violence, and dementia. The band appeared on the 2013 split release Evil Reincarnation alongside Santiago black/speed metal act Evil Force, with their tracks recorded and mixed by Jose Jara at Mazazor Studios in Santiago.

Demiurgo is a black metal band from Berazategui, Buenos Aires, formed by brothers Federico Storni (vocals/lead guitar) and Matías Storni (rhythm guitar), with Leandro González on drums and Gonzalo Villarreal on bass. The band released their debut album "Dark Feeling" (2021) on the Metal Eterno label and has supported major international black metal acts including Gorgoroth, Watain, Behexen, Horna, and Mgła at Argentine shows.

Demiurgus are a death/thrash metal band from Santiago, Chile, formed in 2019 initially as a solo project by vocalist and guitarist Manuel J.S.M., drawing influences from Human-era Death, early Sepultura, and fellow Chilean act Criminal. The band released two demos in 2019, the Spanish-language single La Decapitación de Cronos in 2022, and their debut full-length Equilibrio in 2025 through Awakening Records.

Demogorgon is a black metal band from Juiz de Fora, Minas Gerais, Brazil, catalogued on Metal Archives under ID 14292. The band operates within the Brazilian underground black metal scene, with lyrical themes focused on occult inquiries, and has been associated with the Headbanger Force label.

Demoledor is a heavy metal band from Florencio Varela, Buenos Aires, founded by Miguel "Tano" Di Bella and inspired by Black Sabbath, Dio, and Ozzy Osbourne. They released their debut album "Masticando Bronca" in 2010 on Prisa Discos and followed it with "Demonios de Mente" in 2013, recorded at La Nave Oseberg studio and produced by Pato Larralde of Sauron. The band won the heavy-thrash category at the 2010 Varela Rock festival.

Demoledora is an all-female heavy metal band from Tafí Viejo, Tucumán, whose lineup features Zaira on vocals, Gise Fernández on guitar, Maru Portillo on bass, and Sofi Portillo on drums. The band draws on V8 and Megadeth as key influences and has performed at the Tafí Viejo Limón Rock festival, establishing themselves within the regional metal scene.

Demolishment was a death/thrash metal band from Rio de Janeiro, Brazil, formed in 2011 and active until splitting up around 2015. The band released the single "Abscond" (2011), the EP "Our Fury Is Unleashed" (2013), and the full-length "Liturgia Negra" (2018).

Demona is a speed metal project founded in 2007 by Constanza "Tanza" Godoy Díaz (Tanza Speed) in Valparaíso, Chile, with Tanza handling vocals and guitar across various lineups. The band released two full-lengths — "Metal Through the Time" (2012) and "Speaking with the Devil" (2013) — as well as a 2015 EP on Hells Headbangers Records featuring drummer Tormentor of Desaster and mastering by Joel Grind of Toxic Holocaust. The project later evolved into Outline in 2017.

Demoniah is a death 'n' roll band from Recife, Pernambuco, Brazil, formed in 2015. Drawing on the Entombed-style fusion of death metal with rock and punk energy, they released their debut album "Demoniahlizer" in 2018 through Narcoleptica Productions, a release described as overflowing with vicious energy and primal chaos.