Eisenmann, or Eisenman, is a German or Yiddish-language surname from the German Eisen. The name refers to one who works with iron. Notable people with the surname include:
Alvin Eisenman (1921–2013), American graphic designer
Charles Eisenmann (1850–1927), German/American photographer
Eugene Eisenmann (1906–1981), Panamanian/American lawyer and ornithologist
Ike Eisenmann (born 1962), American actor, voice actor and producer
Peter Eisenman (born 1932), American architect
Robert Eisenman, Professor of Middle East Religions and Archaeology
Will Eisenmann (1906–1992), German/Swiss composer
