Lei do Cão is a crossover thrash band from Mossoró, Rio Grande do Norte, Brazil, formed in 2008. Their debut full-length Possuído pelo Tubarão was released in September 2008, delivering eight tracks of fast, aggressive crossover blending thrash and hardcore punk. The band also appeared on a split release with Crippled Fox in 2011, cementing their place in the Brazilian underground crossover scene.

Letargia is a crossover/doom/thrash metal band from Campo Limpo Paulista, São Paulo, Brazil, formed in 2001 and associated with Kill Yourself Productions. The band released the "Stragado EP" in November 2006, recorded at The Magic A.S.O.M. studio with founding members Pacu on guitar and vocals and Mindu on drums. Their music mixes crossover thrash with doom-inflected heaviness and themes of sex, drugs, and rock 'n' roll.

Lethal Blaster is a thrash/speed metal band from Arequipa, Peru, formed in 2013 and active on the local scene since 2015. The band released their self-titled EP in 2018 and followed it with their debut full-length "Velocidad sangrienta" in 2024, cementing their position in Peru's southern thrash scene.

Lethal Infection are a black/death/thrash metal band from Santiago, Chile, who began releasing material in 2017 with the demo Holy Pervertor and quickly followed it with a second demo, The Chant of the Black Prophecies. The band appeared on the split CD Morbid Chants from Southamerican Abyss alongside Putrid, released through Morbid Skull Records.

Leviaethan is one of the most storied thrash metal acts out of Porto Alegre, Rio Grande do Sul, with roots stretching back to 1983. The band released their debut album "Smile!" in 1989–1990 through Rock Brigade Records, followed by "Disturbed Mind" in 1992, and have remained active for over four decades as a cornerstone of Brazilian thrash metal.

Life in Grave is a thrash/crossover hardcore band from Ceilândia, in Brazil's Federal District, formed around 2019–2020 by André Sodom. The band released the debut EP "Graveweed" in 2020 and later appeared on the four-way split "Play Fast Ride Easy", delivering Sodom and Kreator-influenced riffs alongside themes of death and counterculture.

Lipthopia is a thrash metal band from Medellín, Colombia, originally formed in 1992 and active through 1996 before reuniting in 2017. The band recorded the demo "Una nueva oración" (1994) and their debut full-length "Trash Symphony" (1996), then returned decades later with the full-length "Condición anormal" in 2023.

Livin Garden was a heavy/thrash metal quartet from Curitiba, Paraná, Brazil, active from 2006 to around 2016, featuring Pablo Kravicz and Vinnie Lazzaretti on guitars, Gabriel Canoro on vocals, and Roberto Krug on drums. The band released two studio albums — "Where I Can Breathe" (2009) and "Bring It On" (2014, via Digmetalworld Records) — the latter supported by an extensive US tour of approximately fifty dates culminating in a filmed show at the Whisky a Go Go in Los Angeles. Their sound blended hard rock, southern rock, and thrash influences with nods to Metallica and KISS.

Lobotomia is a pioneering crossover thrash and hardcore band from São Paulo, founded in 1984, who helped define the early Brazilian punk-metal underground. Their 1987 self-titled LP introduced a raw, metallic sound unlike anything else in Brazilian punk at the time, and "Só os Mortos Não Reclamam" became a regular fixture on São Paulo's Radio Rock 89 FM. The band reunited in the mid-2000s and continued releasing material, including the albums "Extinção" (2008) and "Desastre" (2016).