The four orchestral suites (called ouvertures by their author), BWV 1066–1069 are four suites by Johann Sebastian Bach. The name ouverture refers only in part to the opening movement in the style of the French overture, in which a majestic opening section in relatively slow dotted-note rhythm in duple meter is followed by a fast fugal section, then rounded off with a short recapitulation of the opening music. More broadly, the term was used in Baroque Germany for a suite of dance-pieces in French Baroque style preceded by such an ouverture.

管弦组曲（BWV 1066-1069）是巴赫管弦乐的代表作之一，又称“序曲”（Ouverture），一共四部。

巴洛克时期序曲的典型，是以一首法国式序曲作前导，其后加上各式舞曲的组合，而舞曲的种类与数量由作曲家自行决定。这种体裁由法国作曲家卢利首创，是从歌剧序曲所作的延伸，为庄重的慢板－赋格风格的快板－庄重的慢板构成的三段体，称为“法国式序曲”；之后卢利与其门生又在法国式序曲后接上各式管弦舞曲，可能来自歌剧，便逐渐形成了此一曲式的传统。