The Biniou is a mouth blown bagpipe from the Brittany region of France. It has a two octave scale, and is very high pitched; its lowest note is the same pitch as the highest on the Great Highland Bagpipe. It has a single drone two octaves below the tonic.

Breton music is of the Celtic tradition. The name biniou comes from the Breton language.

Traditionally it was played as a duo with the bombarde for Breton folk dancing. The biniou is nowadays often heard as part of a bagad.