Korzus is a Brazilian thrash metal band, formed in 1983 in São Paulo. They are one of the oldest and most important bands of the Brazilian thrash metal scene, along with bands like Sarcófago and Sepultura. Their first release was issued in the seminal metal compilation called SP Metal on Baratos Afins label back in 1985.

They changed the lineup a lot of times since the birth of the band, but three members, Marcello Pompeu (on vocals), Silvio Golfetti (on guitars) and Dick (on bass guitar) remained. The classic lineup of the band (1988–1992) was Marcello Pompeu (vocals), Silvio Golfetti (guitars), Marcelo Nicastro (guitars), Dick (bass) and Roberto Betão Sileci (drums, replacing Zema who committed suicide in 1988).