O Bidú: Silêncio no Brooklin is the fifth studio album by Brazilian singer-songwriter and guitarist Jorge Ben. It was recorded with Brazilian rock band The Fevers as Ben's backing musicians and released in 1967 by Artistas Unidos, a small-market record label based in São Paulo.
The album was recorded while Ben was living in Brooklin, a neighborhood of São Paulo with Erasmo Carlos. Its title is a reference to a car that Ben owned at the time and the subtitle is a joke on a neighbor that use to scream "Silence in Brooklin!" when Ben stopped his constant and loud rehearsals. O Bidú: Silêncio no Brooklin marks a change from Ben's previous recording because of the constant presence of the electric guitar and its closeness to the sound of the Jovem Guarda musical movement. Caetano Veloso cites the recording as one of the main influences for Tropicália, another movement of 1960s Brazilian music. According to AllMusic's Philip Jandovský, O Bidú is characteristic of Ben's 1960s recordings in that it is "full of sweet, sincere, and mainly upbeat songs, with the music mixing samba with elements of bossa nova, swing, pop, and soul". Tom Hull calls it the singer's "first real attempt to merge rock and samba", with the rhythm section still swinging more than rocking.