Johann Gottlob Immanuel Breitkopf (Leipzig, 23 November 1719 – 28 January 1794, Leipzig) was a German music publisher and typographer.

Breitkopf was the son of the publisher Bernhard Christoph Breitkopf, founder of the publishing house Breitkopf & Härtel.

His investigations in history and mathematics led him to a scientific study of printing, which resulted in a more artistic development of German text, and an improvement of musical notation (1754).

He revolutionized the music score printing with movable types, and fonts designed as Breitkopf Fraktur.

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