Reinhold Brinkmann (born August 21, 1934 in Wildeshausen, Oldenburg; died 10 October 2010) was a German musicologist.
Brinkmann was born in Wildeshausen and studied at Freiburg im Breisgau. His dissertation was about Arnold Schönberg's Klavierstücke op. 11. He started working on the faculty of Freie Universität Berlin in 1970. From 1972 to 1980 he taught at Philipps-Universität Marburg, and then until 1985 again in Berlin, at the Universität der Künste Berlin. Since 1985 he has taught at Harvard University. In 2001 he was honored with the Ernst von Siemens Music Prize. In 2006 he was elected Honorary Member of the American Musicological Society.
His research has included widely diverse publications in all areas of music theory and history from the 18th to the 20th centuries, with particular emphasis on interdisciplinary aspects.