Flávio Guimarães (born November 10, 1963) is a Brazilian composer, harmonica player and singer.
Considered a blues pioneer in Brazil, he founded the band Blues Etílicos in 1986, which is considered the most successful Brazilian blues group.
He has also played with many famous artists along his career, such as Alceu Valença, Ed Motta, Luiz Melodia, Paulo Moura, Zeca Baleiro, Buddy Guy, Charlie Musselwhite, Sugar Blue e Taj Mahal.