Johann Christian Bach (September 5, 1735 – January 1, 1782) was a composer of the Classical era, the eleventh and youngest son of Johann Sebastian Bach. He is sometimes referred to 'the London Bach' or 'the English Bach', due to his time spent living there. He is noted for influencing the concerto style of Wolfgang Amadeus Mozart.

Two of his brothers are Wilhelm Friedemann Bach and Carl Philipp Emanuel Bach.