Forgery is a thrash/groove metal band from Oslo, Norway, formed in 2021. They deliver the rhythmic punch of groove metal fused with thrash aggression from the Norwegian capital.

Forget the Past is a thrash/groove/melodic death metal band from Budapest, Hungary, active since 2017 and blending three strands of heavy metal into an aggressive whole. The project delivers diverse extreme metal from the Hungarian capital.

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Forgotten Forest is a black/thrash metal band from Ibbenbüren, Germany, formed in 2025. The band fuses the rawness of black metal with thrash metal velocity.

Forgotten Remains is a thrash/death metal band from Chesterfield, England, formed in 2011 from the predecessor band Nylis and known for blindingly fast thrash metal with a harder edge. They reached the final of Bloodstock Open Air's Metal 2 the Masses competition in 2013.

Formaldehyde is a death metal band from Almada on the south bank of the Tagus opposite Lisbon, formed in 2020 after earlier work in death/thrash metal. Their chemical-preservation name matches the clinical aggression of their death metal from greater Lisbon.

Formis is a death/thrash metal band from Sosnowiec in the Silesian Voivodeship, formed in 2014. They deliver punishing death/thrash from the heart of Poland's most densely urbanized and industrial region.

Formless is a death/thrash metal band with funk influences from Bielsko-Biala in southern Poland, active since 2010. Their unusual incorporation of funk elements into a death/thrash framework makes them one of the more stylistically adventurous acts in the Polish extreme metal underground.

Forsake is a heavy/thrash metal band from Nice, France, formed in 2019. The band blends heavy metal hooks with thrash metal aggression from the Côte d'Azur.