Fiume is a black metal project from Italy, formed in 2017. Their work channels the atmospheric and introspective side of Italian black metal, with the project name — Italian for 'river' — suggesting a contemplative, nature-oriented approach to the genre.

Fiume Nero is an anarchist black metal project from Brescia, Italy, founded in June 2008 by guitarist Enna Cancry. Now a duo with vocalist Simon Desecrator, their prolific catalog includes over fifteen years of material spanning the 15th Anniversary best-of compilations and the Lovecraft album series, all delivered through a politically charged, anti-authoritarian lens.

Fiur is a melodic black metal band from Berlin, Germany, formed in 2019. The project blends the darkness of black metal with melodic guitar work from the German capital.

Five the Hierophant is an avant-garde post-black/doom metal band from London, incorporating dark ambient and jazz elements. The band creates a singular fusion of extreme metal, dark ambient, and jazz from the British capital.

Five Wounds is a black metal project from Krakow, Poland, formed in 2014. Their name references the stigmata — the five wounds of Christ — signaling the religious and spiritual darkness at the core of their black metal from Poland's historic royal capital.

Fjall is a melodic post-black metal band from Thuringia, Germany, formed in 2023. The project blends post-rock expansiveness with melodic black metal aggression.

Fjallsbur is an atmospheric post-black metal project from Iceland, emerging in 2025. The project creates expansive, landscape-driven post-black metal from the land of fire and ice.

Fjell is a black metal band from Illertissen, Germany, formed in 2019. The project's Scandinavian name — meaning "mountain" — speaks to their Nordic-influenced black metal from the Swabian town.

Fjellheim is a black metal project from Italy, formed in 2020. Taking a Norwegian-language name meaning 'mountain home,' the project channels the cold atmospherics and naturalistic themes of Scandinavian black metal through an Italian creative perspective.