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.

Final Creation is a death metal band from Pernambuco, Brazil. Their 2022 full-length In The Valley of Death, released through Deprofundis Production and recorded at Darkside Studio by Diego Do'urden, spans seven tracks including the title piece and "Caronte," blending brutal riffing with thematic material drawn from death, ritual, and religion. The band also has an earlier demo, Last Breath, listed on Metal Archives.

Final Disaster is a São Paulo-based melodic death and groove metal band who describe their sound as Horror Metal, pairing dual vocalists Kito Vallim and Deborah Moraes with a lineup of Rodrigo Alves and Lucas Meow on guitars, Felipe KBÇA on bass, and Bruno Garcia on drums. Their 2021 debut full-length Halls of Despair, produced by Raphael Gazal, is a thirteen-track concept album built around a serial killer narrative and includes guest appearances from Wall Almeida and Caio Botrel. The band also contributed a Deep Purple cover to the 2020 compilation The Brazilian Tribute to Deep Purple on Armadillo Records.

Final Maze is a Brazilian black metal project formed in 2023, featuring vocalist JP Delicato. The band released a string of recordings in their debut year, including the two-track digital single Shadows and Echoes in November 2023, which was inspired by a trip to Athens and Phraxos, Greece, and the full-length The First Floor in December 2023. Their Bandcamp presence explicitly opposes NSBM, positioning the project within the anti-fascist wing of the black metal underground.