Fjelltrone is a black metal and dark ambient project from Karlshamn in the Blekinge region of southern Sweden, active since 1999. Over a quarter century they have blended black metal with dark ambient textures from the Baltic coast.

Fjellvind is a raw black metal project from Burgas, Bulgaria, active since 2014. Their releases include "Vinterens Ondskap," "Skies Unfold," and "Wrath of a Titan," drawing on Scandinavian-influenced aesthetics filtered through a Bulgarian underground sensibility.

Fjoergyn is an epic/symphonic black metal band from Jena, Germany, featuring Stephan L. on vocals, guitar, and orchestral arrangements alongside a full five-piece lineup. Their catalog — including "Jahreszeiten," "Monument Ende," "Lvcifer Es," and "Terra Satanica" via Lifeforce Records — weaves philosophical and esoteric themes through grandiose symphonic black metal.

Fjord is a black metal band from Zalaegerszeg in western Hungary, active since 2012. The project channels cold, Scandinavian-inspired black metal from the rural Zala County.

Fjorsvartnir is a melodic black metal band from Copenhagen, Denmark. The band channels melodic black metal from the Danish capital, drawing on Norse-inspired aesthetics.

Fjøsnisse is a black metal project from Malm in central Norway, formed in 2020. Named after the fjøsnisse — the barn-dwelling gnome of Scandinavian folklore — they bring an unusually whimsical mythological reference to an otherwise severe genre.

Flagellant is a black metal band from Munich, Germany, formed in 2007. With nearly two decades of activity, the band has been a consistent presence in the Bavarian black metal underground.

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Flagellum Dei is an epic black metal band from Milan, Italy, active since 2004. Their discography including Under the Might, Order of the Obscure, and Tormentor of the False Creator delivers commanding, grandiose black metal steeped in anti-religious fury and historical darkness.