Firtan is a pagan/black metal band from Lörrach, Germany, active since 2013 and described as a relentless force in the German extreme metal scene. Drawing from 1990s black metal inspiration, they have evolved into a more progressive entity across seven releases — from "Wogen der Trauer" (2013) through "Ethos" (2024) — captivating audiences with dynamic performances across Europe.

Firunwinta is a one-man Austrian black metal project forged, as the artist describes it, "in the mist of the Karawanken," the mountain range on the Austrian–Slovenian border. The project is operated by Kälte, and their 2022 EP "Innenleben..." and the 2025 EP "Klagelieder der Heimat" deliver raw, stripped-down third-wave black metal with shrill guitars and raspy vocals in the tradition of Ildjarn, Judas Iscariot, and Nargaroth.

Fish is a progressive metal band from Belfort, France, formed in 2016. The band explores complex progressive metal from the Franche-Comté fortress city.

Fishing with Dynamite is a melodic death metal and deathcore band from Budapest, Hungary, active since 2017. The project fuses melodic hooks with extreme metal heaviness from the Hungarian capital.

Fission is a melodic thrash/death metal band from Skelleftea in the Vasterbotten region, formed in 2023. They bring melodic extreme metal to the Swedish subarctic, blending thrash and death metal from one of Norrland's mining towns.

Fissure of Riddles is a progressive/sludge/post-metal band from Weymouth, England, formed in 2014. The band merges progressive complexity with sludge and post-metal from the Dorset coast.

Fist is a NWOBHM/heavy metal band from Newcastle upon Tyne, England. The band carries the torch of the New Wave of British Heavy Metal tradition from the Tyneside city.

Fistful is a heavy metal band from Järvenpää, Finland, formed in 2014. The band delivers hard-hitting heavy metal from the southern Finnish town.

Fisura is a groove metal/metalcore band from Alcázar de San Juan, Spain, formed in 2016. The band blends groove metal rhythms with metalcore intensity from the La Mancha region.