Einhorn is German for unicorn. It is also used as a surname. Notable people with the surname include:
Alfred Einhorn (1856–1917), biochemist, inventor of procaine (Novocain)
David Einhorn (rabbi)
David Einhorn (hedge fund manager)
Eddie Einhorn, a part owner of the Chicago White Sox baseball team
Edward Einhorn, children's author, director and playwright
Ephraim Einhorn, sole rabbi of Taiwan
Ira Einhorn, also known as the "Unicorn Killer"
Jerzy Einhorn, oncologist and politician, Holocaust survivor
Jessica Einhorn
Joseph Einhorn
Lawrence Einhorn
Nathan Einhorn
Paul Einhorn
Randall Einhorn
Richard Einhorn, American composer
Trevor Einhorn, American actor