Diarrhectomy is a slam/brutal death metal band from Joensuu, Finland, emerging in 2025. They push brutal death metal to its most extreme, visceral limits.

Diascorium is a technical death/black metal band from Leeds, England, active since 2010. They deliver technically demanding extreme metal from West Yorkshire.

Diathesis is a London-based technical death metal band formed in 2010, featuring vocalist Ross Hurrell and guitarist Paul Voulgaridis among their lineup. Their debut release The Inception showcases a blend of technical death metal and progressive metal influences across six tracks of intricate, aggressive material.

Diatonic is a death metal band from Sweden, formed in 2020. The project delivers aggressive Swedish death metal.

Diatryma is a death and thrash metal band from Uppsala, Sweden, formed in 2024. The project fuses death metal with thrash velocity.

Diavolos is a death/black/thrash metal band from Greece, featuring Tas Danazoglou (Satan's Wrath, ex-Electric Wizard) and Taneli Jarva (ex-Sentenced, ex-Impaled Nazarene). Their 2015 album You Lived Now Die, released through Hells Headbangers, delivers ten tracks of filthy 1980s-inspired extreme metal drawing from Bathory, early Onslaught, and Possessed.

Dichotomy is a melodic and technical death metal band from Dublin, Ireland, formed in 2011. The band blend intricate technical passages with melodic death metal sensibility.

Dickless Tracy is a death metal and grindcore band from Brezice, Slovenia, formed in 2009. The project delivers savage grinding death metal from the Posavje region.

Dicktator is a death/thrash metal band from Vaala, Finland, formed in 2015. They deliver authoritarian death/thrash from the Finnish interior.