Quarteto Novo was a group formed in São Paulo, Brazil in 1966 which released one landmark instrumental album and launched the careers of some of the band's members. The eponymous 1967 album has been influential in jazz and pop music.

Originally named Trio Novo, the group consisted of Theo de Barros (bass and guitar); Heraldo do Monte (Viola caipira and guitar) and Airto Moreira (percussion). The group was created to accompany singer/songwriter Geraldo Vandré in concert and on recordings. With the arrival of flutist Hermeto Pascoal, the group was renamed Quarteto Novo. In 1967 the group recorded their only album, Quarteto Novo (Odeon Records).