Decolate is a thrash metal band from Bielsk Podlaski, Poland, formed in 2007. The project delivers aggressive thrash metal from the Podlasie region.

Decollated is a death/thrash metal band from Exeter, England, formed in 2017. They deliver beheading death/thrash from Devon.

Decongest is a death/thrash metal band from Budapest, Hungary, formed in 2022, featuring vocalist-guitarist Tamas Zsakai, guitarist Marton Szigeti, bassist Ferenc Gal, and drummer Zsolt Ferencz. Their 2022 demo delivers three tracks of extreme metal distributed through Drinkin' Beer in Bandana Records.

A thrash metal band from Salzburg, Austria, now split up, documented in metal databases as one of the city's representative thrash acts of their era. Limited releases place them firmly in the aggressive, riff-driven tradition of European thrash.

Formed in Nijlen, Antwerp in 2006, Decross play death and thrash metal with anti-religious lyrical themes rooted in the Belgian underground. The band appeared on the Deathmetal.be Sampler in 2012 and remained an independent, unsigned act throughout their run.

Decryption hammers out thrash and groove metal from the Sicilian city of Agrigento, fusing old-school thrash aggression with groove metal's syncopated punch. Active since 2014, they bring high-energy metal to one of Sicily's most ancient cities.

Decryptor is a death/thrash metal band from Fethard, Ireland, formed in 2021. The band deliver aggressive death-thrash from the Irish underground metal scene.

Dedhed is a heavy/thrash metal band from St. Austell, England, active since 2013. They deliver dead-headed thrash from Cornwall.

Dedlok is a thrash metal band from Oxford, England, active since 1990. With over three decades of history, they are among the longest-running thrash acts in southern England.