Decerebrate is a death metal band from Flensburg, Germany, formed in 2020. They deliver brutal death metal from Germany's northernmost reaches.

Dechristianized plays death metal from Sicily, taking their name from Vital Remains' landmark album and signaling an allegiance to anti-religious extremity. Their Sicilian origins add a layer of cultural tension to music that directly confronts the island's deep Catholic heritage.

Decibel Hammer is a thrash metal band from Tampere, Finland, active since 2013. They hammer out fierce thrash from the Finnish industrial city.

Decima is a black metal band from Lyon, France, formed in 2019. They deliver measured black metal from southeastern France.

Decimals is a progressive metal band from Barcelona, Spain, formed in 2018. They explore complex mathematical precision through progressive metal.

Decimate is a thrash metal/metalcore band from Birmingham, England, active since 2014. They deliver decimating aggression from the West Midlands.

Decimated Cross is a black metal band from Tamworth, England, formed in 2019. They deliver crucifying black metal from the Staffordshire heartland.

Decipher is a black/death metal band from Athens, Greece, formed in 2023, featuring guitarist-vocalist Kostas Gerochristos (Lucifer's Child), bassist Kostas Ragiadakos (Dephosphorus), and drummer Nodas Chatzopoulos. Their 2026 album Thelema, released through Transcending Obscurity Records, delivers steely, riff-focused black metal with melodic undertones across seven tracks.

Deciphered plays symphonic black/death metal from Dimitrovgrad in Ulyanovsk Oblast, active since 2017. Their code-breaking name suits music that layers orchestral complexity over extreme metal, creating compositions that reward repeated decoding.