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.

Denim and Leather is a traditional heavy metal band from Campinas, São Paulo, Brazil. The band is signed to Kill Again Records and has appeared on compilations including a cover of Manilla Road's "Open the Gates" on the tribute album "The Riddle Masters" (2007), reflecting their deep roots in classic heavy metal.

Depth Hate is a heavy metal and hard rock band from Guarujá, São Paulo, Brazil, formed in 2015 with a sound characterized by heaviness blended with psychedelic nuances and English-language lyrics dealing with political and social themes. The band gained visibility on ReverbNation's Brazilian metal rankings, reaching the top position in 2016 among the most engaged Brazilian metal acts on social networks.

Devilsnite came together in Buenos Aires in mid-2012 when the pseudonymous Mr. Halloween, Mr. Death, and Mr. Boogie set out to fuse heavy metal with the aesthetic of horror cinema, a style they call "horror metal." The band released their debut EP Coming Home to Hell independently in 2014, followed by their first full-length Horror World in 2018 — a 13-track album that included a cover of Michael Jackson's "Thriller" — and opened for The Misfits in Buenos Aires in May 2016. Their second album Fighting Evil appeared in 2023, and a third studio album, Escape From Hell, arrived in 2026.

Dirty Room is a thrash and crossover metal band from Buenos Aires featuring vocalist Leandro Laudonia, guitarist Luciano Vazquez Lococo, bassist Tulio Navia, and drummer Emanuel Vazquez Lococo. The band released their debut EP Conspiracy & Doomsday in August 2016 and followed it with the full-length Nevercops in March 2018.

Disidente Inmortal is a traditional heavy metal band from Buenos Aires, Argentina, featuring vocalist Pablo Grasso and guitarist Manuel Fresno. The band released the album "Con la Fuerza del Trueno" in 2017 and followed it with "Estandarte Metálico" in 2021, the latter recorded at La Garra Studio in Villa Urquiza.

Doble Filo is a Christian heavy metal band from Santa Fe, Argentina, originally founded in mid-1992 and widely regarded as one of the pioneering Christian metal acts in the country. Their 1993 tape "Antes del Fin" is among the earliest documents of the Argentine Christian metal scene, and the band returned to activity after a decade-long hiatus, as reported by Metalbreed Magazine in 2018.

Doctrina is a heavy metal band from Neuquén, Patagonia, Argentina, with Christian lyrical themes and a roots dating to the mid-1990s. The band released demo recordings in the early 2000s and earned wider regional recognition when they were selected to represent Neuquén at the Cosquín Rock festival, one of Argentina's premier rock and metal events.

Dogma Blue was a heavy metal band from Curitiba, Paraná, Brazil, active from April 2018 until they split up in September 2020. The independent outfit operated within Curitiba's underground metal scene during their brief two-year run.