Defamatory is a death metal band from Medellín, Antioquia, Colombia, formed in 2016 and signed to Awakening Records. The band released their debut full-length "Premature Burial" in 2017 and followed it with "Path of No Return" in 2025.

Dimension Doom is a symphonic death/doom metal trio from Curitiba, Paraná, Brazil, formed in 2023 by experienced musicians from the local underground scene. The band crafts science fiction-themed death-doom with lush synthesizers and rotating guest guitarists, releasing their debut single "Dimension of Death" in September 2023 and their first full-length album "Prime Directive" in 2024.

Dinnamarque is a heavy/power metal band from Belo Horizonte, Minas Gerais, Brazil, led by vocalist and bassist Rafael Dinnamarque alongside guitarist partners and drummer Riccardo Linassi. The band released their debut album "One Spirit of a Thousand Faces" in 2020, blending traditional heavy metal with power metal, followed by "The Darkside of Human Nature" in December 2021, which leaned further into power metal with orchestrations and dynamic arrangements. They have shared stages with acts including Blaze Bayley, Sonata Arctica, and Kiko Loureiro.

Diorese is a death metal and goregrind band from Cuiabá, Mato Grosso, Brazil, whose lyrics in Portuguese explore the culture, rituals, and myths of ancient anthropophagic indigenous peoples. The band released their album "O Derramamento de Sangue Continuará" (The Bloodshed Will Continue) in December 2012. Their lineup consists of Hygor Cypriani on bass and vocals, Jorge Castro on guitars and backing vocals, and Luciano "Psycohorror" on drums.

Dios Serpiente is an industrial drone, doom, and post-metal project from Buenos Aires that released its debut album Fuego Austral in July 2023 through Venado Records, a seven-track record running just over 37 minutes. The band followed it with Duelo de Gigantes in 2024 via South American Sludge Records, cementing their presence in Argentina's heavy underground scene.

Dioxina was a thrash metal and crossover band from São Paulo, Brazil, active from 2015 and later split-up. The band self-released their five-track EP "Ordem e Regresso" in August 2015, delivering aggressive crossover thrash in the tradition of the São Paulo underground scene. They operated independently throughout their existence.

Dipnoi was a thrash metal band from São Paulo, Brazil, active during the 1990s and now split-up. The band is catalogued in the Metal Archives as part of Brazil's broader São Paulo thrash metal scene, which emerged alongside internationally known acts from the region. They released demos during their active period and are documented primarily through underground metal archives.

Dirtweed is a sludge, stoner, and doom metal trio from Rosario, Argentina, consisting of Maximiliano Dana on guitar and vocals, Juan Ignacio Garcia on bass, and Guido Rumi on drums. The band released their debut single "El del Vómito" in July 2024 and followed it with a self-titled four-track album in February 2026, recorded at 312 Music Studio and mixed and mastered by Gonzalo Villagra at Estudios Audion.

Dirty Grave is a doom metal band from Orlândia, São Paulo, Brazil, formed in 2013 by vocalist/bassist Mark Rainbow and guitarist Victor Berg, drawing heavily from proto-doom forebears like Black Sabbath and Pentagram while incorporating blues and psychedelia. The band released their debut full-length "Evil Desire" in 2017 and followed it with "Sin After Death" in 2019, the latter celebrating Satan and old-school metal. With two albums and several EPs, their releases have received coverage in international specialized metal media.