Fulanno is a stoner/doom metal trio from Coronda, Santa Fe, Argentina, consisting of Fila Frutos on guitar and vocals, Mauro Carosela on bass, and Jose A on drums. The band built an international cult following through their albums "Velas Negras" (2018) and "Nadie Está a Salvo del Mal" (2020), and returned in 2025 with "Nosotros Somos el Fin del Mundo" via Interstellar Smoke Records.

Fulgorious is a Black Metal band from Quito, Ecuador, formed in 2023. The band released the demo "Total Black Metal Cult" in 2025, establishing themselves within the Ecuadorian black metal underground.

Fullgore is a death/thrash metal band from Vila Velha, Espírito Santo, Brazil, founded in mid-2002 by guitarists André Nideck and Gustavo Souza alongside drummer Marcus Vinicius. The band released their debut demo Blessed Sacred Blast in December 2003, a live-recorded effort praised for its tight blend of death and thrash metal.

Fullrage is a heavy/thrash metal band from Porto Alegre, Rio Grande do Sul, Brazil, formed in 2020. They released their debut album, Resurrection Denied, in 2021 through True Metal Records — a ten-track effort with mix and mastering by Ben Hur Lima and cover artwork by Marcelo Vasco.

Fulminante is a thrash/death metal band from Pombos, Pernambuco, Brazil, formed in 2018. The band has released several independent recordings including the EP O Início do Fim, tracked at InTocas Studio in Caruaru, and the EPs Liberte a Besta and Fuerza y acero, both released in 2023.

Funebrö is a black/death metal band from Mongaguá, São Paulo, Brazil, formed in 2017. They released a cluster of recordings in their debut year — including Ritual of Doom, Curse of the Dead, Necromancy, Death by Metal, and Satanists — and returned in 2023 with the release Mentecaptos.

Funeral Dawn is a funeral doom metal solo project by Thiago Alboneti from Osasco, São Paulo, Brazil, formed in 2020 during the pandemic as a personal outlet for isolation and grief. The project released the album Shadows and Rain and the 2024 single "In Mourning's Silence", drawing on influences such as Draconian and Shape of Despair.

Funeral Doom Terror is a funeral doom metal project from La Falda, Córdoba, Argentina, described as one phase of the broader Funeral Noise Terror entity. Their album "Apotheosis of Torture" was released on October 14, 2022, recorded and self-produced entirely in the Sierras de Córdoba, with lyrical themes centered on pain, antitheism, and despair.

Funeral Fullmoon is a one-man raw black metal and dungeon synth project from the Valparaíso Region of Chile, founded in 2019 under the alias Magister Nihilifer Vendetta 218. The project debuted with the cassette demo "De Occulta Symphonie" (2019) on Mahamvantara Arts Records and has since released a steady stream of material including "Revelation of Evil" (2021, Inferna Profundus Records) and "Unholy Kingdom of Diabolic Emperors" (2023), exploring themes of darkness, vampirism, and spiritism in a deliberately raw, lo-fi style.