Erhart is a surname and a given name. Notable people so named include:
Gregor Erhart (c. 1470?–1540), German sculptorMaria Erhart (1944–2011), Austrian international bridge playerMichel Erhart (c. 1440-45 — after 1522), German late Gothic sculptorErhard Altdorfer (c. 1480–1561), sometimes spelled Erhart, German Early Renaissance printmaker, painter and architectErhart Aten (1932–2004), Micronesian politicianErhart or Erhard Hegenwald, 16th century writer of the ReformationErhart Regier (1916-1976), Canadian politician