Dimscûa is a post-metal and atmospheric sludge band from Berkshire, England, whose name is roughly pronounced like "dim skewer." Their release Dust Eater showcases dense, layered post-metal textures drawn from the heavier end of the atmospheric sludge spectrum.

Diogenes BCE plays melodic death/sludge metal from Holmestrand, formed in 2022 and named after the ancient Greek cynic philosopher. Their philosophical namesake's rejection of material comfort translates into music that refuses easy pleasures, merging melodic death metal's hooks with sludge's abrasive weight.

Dionisium is a doom, sludge, and stoner metal band from Lonate Pozzolo, in the Varese province of Lombardy, Italy, formed in 2021. The project channels heavy, fuzzed-out riffs through a ritualistic Dionysian lens.

Directional is a black, doom, and sludge metal band from Stockholm, Sweden, formed in 2021. The project blends extreme metal styles into crushing soundscapes.

Dirt Forge is a Copenhagen sludge metal act active since 2015, hammering raw, distorted material into shape through sheer force and repetition. Their industrial-forge imagery captures the physical, labor-intensive quality of their music — heavy metal in the most literal sense.

Dirtpill is an experimental sludge metal band from Krasnoyarsk, Russia, formed in 2008. The project pushes sludge metal boundaries with experimental elements.

Disataraxy is a post-metal and sludge metal band from Saint Petersburg, Russia, formed in 2020. The project crafts atmospheric post-metal with sludge metal weight.

Discult is a post-metal and sludge metal band from Gothenburg, Sweden, formed in 2021. The project crafts atmospheric post-metal with sludge weight.

Dispain is a sludge/doom metal band from Madrid, Spain, active since 2008. They deliver crushing sludge and doom metal steeped in suffering.