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.

Fountain of Youth is a progressive metal band from the Bühl/Mannheim area of Germany, formed in 2015. The band explores intricate progressive metal compositions from the upper Rhine region.

Four Wheel Drive is a progressive metal band from Rome, Italy, formed in 2025. They represent the newest generation of Italian progressive metal, bringing complex compositions and technical ambition to Rome's diverse heavy music scene.