Finsterforst — whose name translates as "dark forest," a nod to their home region of Schwarzwald (Black Forest) in Baden-Württemberg — formed in Germany in late 2004 and play a folk metal style heavily defined by accordion melodies alongside standard metal instrumentation. Signed to Napalm Records in 2012, the band released Rastlos (2012) and Mach Dich Frei (2015) to strong critical reception, and pushed toward longer compositional structures with Zerfall (2019), which features just five tracks including a 36-minute closing piece, "Ecce Homo." Their lyrics engage with German mythology, nature, and pagan themes, with harsh vocals grounding the otherwise expansive folk arrangements.

Finsterort is a black metal band from Munich, Germany, with roots stretching back to 1980, making them one of the earliest black metal-aligned acts in Germany. The band's name — meaning "dark place" — reflects their long commitment to shadowy extremity.

Finsterwald is a raw black metal project from Saarbrücken, Germany, formed in 2025. The project's name — "dark forest" — evokes the primal wilderness central to their raw black metal aesthetic.

Fiori del Male is an experimental black metal duo from Brindisi, Italy, formed in 2023 by multi-instrumentalist Nero and drummer Tristu. Their release Con un Grido Entrero nell'Ombra delivers minimalist, atmospheric black metal from the Puglian underground, their name — Italian for 'Flowers of Evil' — nodding to Baudelaire's poetic darkness.

Fiorina 161 is a melodic black/doom metal band with electronic elements from Aubagne, France, formed in 2024. Named after the prison planet from the Alien franchise, the band blends black and doom metal with electronic textures from the Provençal town near Marseille.

Fir is a melodic death metal band from the Erzgebirge region of Germany, formed in 2024. The band draws melodic death metal from the ore-rich mountains along the Czech-German border.

Fir Bolg is a black metal band from Nice, France, active since 2008. Named after the mythological race of Irish legend, the band has spent nearly two decades creating black metal from the Côte d'Azur.

Firbholg is an epic black metal band from Foligno in the Perugia province of Umbria, active since 2002 and incorporating folk influences. Across releases including Holy Quest, Ashes Of War, and Firbholg III, they weave epic, folk-tinged narratives through a black metal framework rooted in the medieval heritage of central Italy.

Fire Action is a heavy metal band from Helsinki, Finland, formed in 2018. The band plays energetic, classic-style heavy metal from the Finnish capital.