Diamond Wölf is a melodic heavy metal band from Vannes, France, formed in 2015. They deliver melodic heavy metal with wolfish energy from Brittany.

Diamonds Are Forever is a metalcore/deathcore band from Cluj-Napoca, active since 2011 and bringing modern extreme metal to Transylvania's largest city. Their James Bond-quoting name adds unexpected glamour to a sound built on crushing breakdowns and guttural vocals.

Dianne plays symphonic metal from North Brabant, formed in 2023 and delivering orchestral grandeur through sweeping compositions and powerful vocals. Their personal-name title lends an intimate, human dimension to the genre's typically epic scale.

Dianoya is a progressive metal band from Warsaw, Poland, formed in 2010. The project explores complex progressive metal compositions from the Polish capital.

Dianthus is a death and thrash metal band from Myslowice, Poland, formed in 1996. One of the veteran extreme metal acts in the Upper Silesian scene, the project has delivered decades of death/thrash.

Diapason is a progressive metal band from Moscow, Russia, formed in 2025. The project explores complex progressive metal compositions.

A groove and thrash metal band from Antwerp, Diapolis released their New Millennium Crusade EP in September 2022 and have been recognized within the local scene as sharp purveyors of driving, riff-forward thrash. Unsigned and independent, they carry on the tradition of Antwerp's underground heavy music community.

Diarrea is a grindcore band from the Florence, Prato, and Campi Bisenzio area of Tuscany, Italy, formed in 2019. The project delivers raw and visceral grindcore extremity from the Tuscan underground.

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.