Feuille Morte is a black metal project from France, formed in 2021. The project's name — meaning "dead leaf" — evokes autumnal decay through atmospheric black metal.

Fever Sea is an atmospheric black metal/post-rock band from Bristol, England, formed in 2012. The band creates expansive, oceanic soundscapes merging atmospheric black metal with post-rock.

Fever Sun is a black/sludge metal project from Pordenone, Italy, self-described as a 'local discomfort unit.' Their 2025 debut Index spans four tracks across thirty-two minutes of atmosphere-heavy black metal fused with sludge and doom, praised for its balance of crushing weight and compositional nuance.

Feyn is a progressive black metal band from Paris, France, formed in 2021. The band pushes black metal into progressive, boundary-defying territory from the French capital.

Feythland is a black/death metal band from Krakow, Poland, active since 2006. They blend black and death metal traditions from one of Poland's most culturally rich cities, drawing on nearly two decades of experience in the underground.

Fiamma Impura is a post-black metal and post-rock project from Milan, Italy, formed in 2021. Across releases including Solo, Shooting Stars, and Il Riflesso di Lei, they explore the atmospheric space between black metal intensity and post-rock contemplation.

Fiammes is a black metal project named after the hamlet of Fiames near Belluno in the Dolomites, formed in 2020. Their demo recordings channel raw, lo-fi black metal inspired by the rugged alpine landscapes of northeastern Italy.

Fiasko is a post-metal band from Warsaw that has evolved toward sludge/black metal since their 2017 formation. Their stylistic journey from atmospheric post-metal to more aggressive sludge and black metal territory mirrors the restless creative energy of the Polish capital's underground scene.

Fiat Noctum is a black metal project from Visby on the island of Gotland, formed in 2019. Their Latin name — meaning 'let there be night' — and their island setting give their black metal a uniquely isolated, medieval character from the Baltic Sea.