Dark Theory is an experimental black metal band from the Maidstone/Ramsgate area of England, active since 2013. They theorize through experimental black metal from the Garden of England.

Dark Thoughts is a doom/death metal band from Athens, Greece, formed in 2016. The band fuse the crushing weight of doom metal with death metal aggression in their dark, heavy compositions.

Dark Tower is a heavy/power metal band from Seville, Spain, formed in 2024. They build towering heavy and power metal from Andalusia's historic capital.

Dark Towers is a black metal band from Liverpool, England, formed in 2024. They deliver towering black metal from Merseyside.

Dark Tranquillity is one of the Gothenburg Three — alongside At the Gates and In Flames — that defined the melodic death metal genre in the early 1990s. Their extensive discography, from Skydancer through decades of evolution, has shaped the sound of an entire subgenre while the band has continually refined and expanded their approach to melodic extremity.

Dark Twin is an industrial and progressive metal band from Uzhhorod, Ukraine, formed in 2015. The project blends industrial intensity with progressive complexity from the Transcarpathian region.

Dark Tyrants plays speed metal from Ornskoldsvik on the High Coast of northern Sweden, active since 2016. Their authoritarian name drives high-velocity compositions that rule through sheer speed and riff-driven dominance.

Dark Veil is a melodic death metal band from London, England, formed in 2024. They deliver veiled melodic death metal from the British capital.

Dark Vision is an extreme metal band from Piraeus and Athens, Greece, formed in 1997, evolving from a six-piece gothic/symphonic black metal configuration to their current black/death metal quartet. Their 2021 album Ianos, mixed at Stage One Studios in Germany and released through Cult of Parthenope, features stormy black metal with death elements, backed by a live history that includes sharing stages with Mayhem, Satyricon, Rotting Christ, and Septic Flesh.