Fervent Hate is a death 'n' roll band from Arequipa, Peru, formed in 2008 and known for blending death metal aggression with hard rock grooves and crushing riffs. Signed to Satanath Records, the band has released three full-lengths — Roads of Insanity (2013), Tales of Hate, Lust and Chaos (2018), and In Rot We Trust (2024) — alongside appearances on Peruvian metal compilations including Compilatorio Arequipa Metal 1.

Festering Explosion is a one-man goregrind project from São José dos Campos, São Paulo, Brazil, operated by Sérgio Sanches Parra. The project has released multiple recordings including the 15-track album Incisions in Rot (2021), the EP Diagnosis of Bodily Collapse (2021), and the album Where the Dead Don't Rest (2020), all rooted in old-school goregrind and death metal aesthetics.

Fiambre Social is a black punk death metal band from Punta Arenas, Chile, playing what they describe as incendiary rock and roll rooted in anti-religious and anti-system themes. Their 2020 debut "La rebelión del cadáver" was executed, recorded, and mixed by Darío Haro, and includes a cover of Eskorbuto alongside five original tracks steeped in raw punk aggression and death metal grime.

Fibroma is a brutal death metal band from Quilmes, Buenos Aires, formed by Lucas Delgado (guitars, vocals), Nico Becker (bass, vocals), and Ismael Perez (drums), drawing influence from Morbid Angel, Cannibal Corpse, and Vader. The band released their self-titled debut in August 2014, a four-track EP in November 2016, and the full-length "Interdimensional Chaos" in October 2018.

Filagares is a death/black metal band from Bogotá, Colombia, formed in 2023, drawing lyrical concepts from The Lesser Key of Solomon and Colombian occult tradition. The band released the EP Lesser Demonic Rites (2024) and their debut full-length Letanías Para un Dios Muerto in 2025.

Filhos da Besta were a black/speed metal and punk band from São José dos Campos, São Paulo, Brazil, active from 2021 until their split. The band blended raw metal aggression with punk energy under the motto "IN METAL WE PUNXXX," releasing the EP A Marca da Besta in 2022 alongside earlier material including the Terrorismo Sonoro demo from 2021.

Filosa is an all-female heavy metal band from Buenos Aires whose lineup features Gabriela Altamirano on vocals, Eileen Curri and Sofía Santagelo on guitars, May Arellano on bass, and Yanina Lettera on drums. The band released their debut EP "Al Heavy Metal" on October 25, 2022 through Black Legion Records, singing entirely in Spanish and drawing primary influence from Judas Priest.

Fim da Aurora is a death metal and metalcore band from Jundiaí, São Paulo, Brazil, formed around 2015. The band released the EP Espíritos in 2015 and has continued releasing material independently, including the album Empty in 2024, blending technical death metal brutality with metalcore elements. The group features André Bairral on vocals alongside members on guitar, bass, and drums.

Fimbulvinter is a raw black metal band from Curitiba, Paraná, Brazil, formed in 2015. The band's name references the catastrophic winter of Norse mythology that precedes Ragnarök, fitting a sound rooted in atmospheric, lo-fi black metal extremity. They released the two-part demo series The Final Tale in 2019, comprising The Final Tale I – Snow Storm and The Final Tale II – Jarl.