Daniel Heartz (1928–2019) was an American musicologist and professor of music at the University of California, Berkeley.^[1]

Heartz studied at Harvard University. He lived in Berkeley, California.

• Recipient of Guggenheim Fellowships
• ASCAP–Deems Taylor Awards
• Kinkeldey Award of the American Musicological Society.

• Artists and Musicians: Portrait Studies from the Rococo to the Revolution, with contributing studies by Paul Corneilson and John A. Rice, ed. Beverly Wilcox, Ann Arbor, MI: Steglein, 2014. ISBN 978-0-9819850-7-7
• Mozart, Haydn and Early Beethoven. 1781–1802, New York, W. W. Norton, 2008. ISBN 0-393-06634-7
• From Garrick to Gluck: Essays on Opera in the Age of Enlightenment, ed. John A. Rice, Hillsdale, NY: Pendragon Press, 2004. ISBN 1-57647-081-4
• Music in European Capitals. The Galant Style, 1720–1780, New York: W.W. Norton, 2003. ISBN 0-393-05080-7
• Haydn, Mozart and the Viennese School. 1740-1780, New York, W. W. Norton, 1995. ISBN 0-393-03712-6
• Mozart's Operas, Berkeley: University of California Press, 1990. ISBN 0-520-07872-1
• Mozart. Idomeneo (Neue Ausgabe sämtlicher Werke ii/5/11), Kassel, 1972.
• Pierre Attaingnant. Royal Printer of Music, Berkeley: University of California Press, 1969. ISBN 0-520-01563-0

• Obituary by Nicholas Mathew, from the archives of the Academic Senate of the University of California