Ehrhart

Ehrhart is a surname. Notable people with the surname include:
 * Eugène Ehrhart (1906–2000), French mathematician who introduced Ehrhart polynomials in the 1960s
 * Gustav Ehrhart (1894–1971), German chemist who synthesized the first fully synthetic opioid analgesic, methadone
 * Jakob Friedrich Ehrhart (1742–1795), German botanist for whom a genus of grasses, Ehrharta, is named