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. He was born in Leipzig and attended the University of Leipzig. 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.

• O. Hase (1876). "Breitkopf und Härtel". Allgemeine Deutsche Biographie (in German). Vol. 3. Leipzig: Duncker & Humblot. pp. 296–303.
• Wolfgang Schmieder (1955). "Breitkopf, Johann Gottlob". Neue Deutsche Biographie (in German). Vol. 2. Berlin: Duncker & Humblot. pp. 578–579.
• This article incorporates text from a publication now in the public domain: Gilman, D. C.; Peck, H. T.; Colby, F. M., eds. (1905). "Breitkopf, Johann Gottlob Immanuel" . New International Encyclopedia (1st ed.). New York: Dodd, Mead.

• Johann Gottlob Immanuel Breitkopf in the German National Library catalogue