Heymann is a German surname. Notable people with the surname include:
Aribert Heymann (1899–1946), German field hockey player
Carl Heymann (also: Karl Heymann) (1854–1922), German pianist
Carl Heymanns Verlag, German publisher
David Heymann, American architect
David L. Heymann (born 1946), American epidemiologist
Ernst Heymann (1870–1946), German jurist
Klaus Heymann (born 1936), German entrepreneur
Philip Heymann (born 1932), American jurist
Tomer Heymann (born 1970), Israeli filmmaker
Werner R. Heymann (1896–1961), German conductor and composer