Herz is a German surname meaning heart. Notable people with the surname include:
Adam Herz, American writer and producerAdolf Herz, Austrian Engineer, inventor of Herz spark plug, photographer and first editor of Camera MagazineAlice Herz, American pacifistEberhard Herz, German American footballerHenri Herz, Austrian pianist, teacher, and composerHenriette Herz (de Lemos), German social leaderJohn H. Herz, American scholar of international relationsJosef E. Herz, American scientist, organic chemistryJuraj Herz, Czech film director, writer and actorMartin F. Herz, American diplomat, ambassadorMichael Herz (businessman), German businessmanMichael Herz, American film producer, director and screenwriterNaphtali Herz Imber, itinerant poet, wrote lyrics of Hatikvah, national anthem of IsraelWinfried Herz, German footballer