Denny Zeitlin (born 10 April 1938) is an American jazz pianist and composer, and a clinical professor of psychiatry at University of California, San Francisco. Since 1963, he has recorded more than 35 albums, including more than 100 compositions, and was a first-place winner in the Down Beat International Jazz Critics' Poll in 1965 and 1974. He composed the soundtrack for the 1978 science-fiction horror film Invasion of the Body Snatchers.