Los Suffers is a doom/sludge/death metal trio from São José dos Campos, Brazil, consisting of Luiz Dias (vocals/guitar), Jean Carreira (bass), and Brendan Kitchen (drums). The band released their debut full-length "Quando A Chama Se Apaga" in March 2022, a six-track album spanning over fifty minutes of heavyweight doom recorded at AS Studio in São José dos Campos. The record drew praise from the international doom and stoner metal press, with Doomed and Stoned highlighting it as a standout entry in Brazil's underground heavy scene.

Los Yithians are a doom and stoner metal trio from San Martín, Argentina, whose name references the Great Race of Yith from H.P. Lovecraft's fiction. Their debut album Pnakotus — seven tracks recorded live in October 2016 and mixed and mastered at 7 Cuchillos Records by Marcos Verón — was released in May 2017. The band's lineup on that record consisted of Edgar Sosa on guitar and vocals, Gastón Olaguibet on bass, and Alberto Adrián on drums.

Los Últimos Días are a Buenos Aires metal band formed in 2017, releasing a self-titled four-track debut that same year, recorded and mixed by Esteban Andrés Miranda at LST Studio in the Flores neighborhood of Buenos Aires. The trio features Juan Manuel Pasam on guitars and synthesizers, Rocío Rodríguez on bass, and Pablo Nuñez Galardo on drums. The band blends death metal, thrash, and punk influences in a raw underground style.

Losing Hope is a depressive black metal project from São Paulo, Brazil, active since 2020. The band released the album "The Town Without Me", which includes the track "Erased" (released May 2021), continuing the Brazilian DSBM tradition with bleak, introspective compositions. Their music is self-released digitally via Bandcamp.

Lost Forever is a progressive/power metal band from Rio de Janeiro, Brazil, known for a vigorous and technically demanding approach that avoids genre clichés. The band released their debut full-length album "The End of Beginning" through Hellion Records in December 2003, establishing their presence in the Brazilian progressive metal scene. They have continued as an independent act, releasing music under the Artax banner.

Lost in Hell is a death/black metal band from Cruz das Almas, Bahia, Brazil. The band released their debut album The Left Side of Genesis, which includes the track "Diabólica" and channels extreme metal in the vein of North American and Brazilian death and black metal traditions. Their lyrics engage with anticlerical and societal critique through a brutal sonic lens.

Lost in Wonders is a melodic death metal band from Curitiba, Paraná, Brazil, formed in 2016. The project centers on Rodolfo Michelis Abilhôa, who handles all instruments, alongside vocalist Luiz Carlos Zientek. The band released their debut album Stout and Full of Life in 2016.

Lostrahuman is a death metal band from Bogotá, Colombia, formed in 2022, featuring Diego Meneses on vocals, Jaime Briceño on bass, Ivan De Avila on drums, and Alex Gomes and Alexander Torres on guitars. The band released their debut EP "Wrath of the Lamb" in 2022, with lyrical concepts exploring the individual human experience against socioeconomic and political inequality through satirical and horrific allegory.

Lothlöryen is a melodic power/folk metal band originating from Machado, Minas Gerais, Brazil, formed in 2002–2003 and later based in Poços de Caldas. Named in homage to J.R.R. Tolkien's elven forest, the band has built a reputation as one of Brazil's leading folk metal acts, releasing albums such as Of Bards and Madmen (2005), Raving Souls Society (2012), and Principles of a Past Tomorrow (2015), and touring across more than eight countries. In 2025 they released …of Bards and Madmen [reimagined], revisiting their debut.