Oficina G3 is a christian rock band from São Paulo, Brazil. Formed in 1988, the current band's line-up consists of: Mauro Henrique (vocals), Juninho Afram (guitars), Jean Carllos (keyboards), Duca Tambasco (bass) and Alexandre Aposan (drums). As of 2006, Celso Machado occasionally tours with the band, playing rhythm guitar.
The band began its work in 1988, as the musical group of the protestant church Cristo Salva. Juninho Afram is the only founding member who still plays in the band. In 1990, Oficina G3 released its first EP.