Forever Blind was a progressive death metal band from Linz, Upper Austria, active from 2007 to 2011. Their 2010 debut album "Where the Sun Revives" combined dynamic, technically varied guitar work with classical melodic touches, featuring a lineup that included keyboards alongside standard death metal instrumentation.

Forgotten Light is a progressive metal band from Ossi in the Sassari province of Sardinia, active since 2013. Their releases Where Light Ends and Window at the Corner blend melodic and aggressive riffs with clean and growling vocals, channeling progressive metal ambition from the underrepresented Sardinian underground.

Forgotten Silence is an avant-garde and progressive death metal band from Rosice, Czech Republic, active since 1993 and boasting true cult status among fans and critics alike. Their vast discography — spanning releases like "Senyaan," "Kro Ni Ka," "La Grande Bouffe," and "Thots" — overlaps into metal, rock, ambient, and jazz, making them one of the most genre-defying acts in Czech metal history.

Forgotten Suns is a progressive rock/metal band from Lisbon, Portugal, active since 2000. Over two-and-a-half decades they have developed a sophisticated approach to progressive metal, establishing themselves as one of Portugal's most enduring prog acts.

Forlorn Hope is a progressive metal band from Groß Umstadt, Germany, formed in 2018. The band explores complex progressive metal compositions from the Hessian Odenwald region.

Forlorn Remembrance is a progressive metal band from Lund in southern Sweden, active since 2010. They bring compositional ambition to the university city in the Skane region.

Forte Ruin is a progressive metal band with melodic death metal influences from Lahti, Finland, formed in 2018. The band merges progressive complexity with the melodic death metal tradition.

Fortress Under Siege is a progressive heavy/power metal band from Athens, Greece, one of the longest-running acts in the Hellenic power metal scene with origins dating back to 1996. The band delivers epic, technically ambitious progressive power metal.

Foscor is a band from Barcelona, Spain, active since 2004, who evolved from black metal origins into progressive post-metal and post-rock territory. Their two-decade journey reflects a constant transformation from aggression toward more expansive, atmospheric compositions.