- Form (NL) (Power Metal-Netherlands)
- Form (EST) (Ambiant Black-Estonia)
- Form Decay (Hardcore-USA)
- Forma (Hardcore-Slovakia)
- Formaldehyde (POR) (Death Metal-Portugal)
- Formaldehyde (USA) (Brutal Death-USA)
- Formaldehyde Sleep (Progressive Black-USA)
- Formalin (Brutal Death-Russia)
- Formalist (Sludge Doom-Italy)
- Formally Death (Deathcore-USA)
- For Many Reasons (Death Metal-France) - Other name : Formanyreasons, FMR
- Formel 1 (Heavy Metal-Germany)
- Former Life (Alternative Metal-France)
- Crehated (Thrash Metal-Italy) - Other name : former Revenant
- Former Soul (Progressive Heavy-Brazil)
- Former Thieves (Hardcore-USA)
- Former Worlds (Sludge Metal-USA)
- Formicarius (Symphonic Black-United-Kingdom)
- Formicator (Black Metal-United-Kingdom)
- Formicidae (Grindcore-USA)
- Formicide (SWE) (Thrash Death-Sweden)
- Formicide (USA) (Thrash Metal-USA)
- Forming The Void (Stoner-USA)
- Formis (Thrash Death-Poland)
- Formless (Technical Death-USA)
- Formless Devotion (Black Metal-South-Africa)
- Formless Oedon (Death Metal-Philippines)
- Formless Terror (Brutal Death-North Macedonia)
- Formloff (Progressive Death-Norway)
- Formoraich (Pagan Black-France)
- Formørkelse (Atmospheric Black-Germany)
- Formorket (Black Metal-Hungary)
- Formosus (Melodic Death Black-Poland)
- Forms (Deathcore-USA)
- Formula Fiction (Death Grind-Netherlands)
- Formulin (Hardcore-France)