Bach-Collegium Stuttgart is an internationally known German instrumental ensemble, founded by Helmuth Rilling in 1965 to accompany the Gächinger Kantorei in choral music with orchestra. Its members are mostly orchestra musicians from Germany and Switzerland who get together for projects associated with the choir and also instrumental programs of their own.

The ensemble has performed at festivals such as the "Musikfest Stuttgart" of the Internationale Bachakademie Stuttgart, Salzburg Festival, Lucerne Festival, Prague Spring or Rheingau Musik Festival.