Eigenmann is a surname. Notable persons with that surname include:
Andi Eigenmann (born 1990), Filipino actress
Carl H. Eigenmann (1863–1927), German–American ichthyologist, husband of Rosa Eigenmann
Eduardo Eigenmann, birth name of Eddie Mesa (born 1938), Filipino actor and singer, father of Michael de Mesa, Mark Gil and Cherie Gil
Evangeline Rose Eigenmann, birth name of Cherie Gil (born 1963), Filipino actress, sister of Michael de Mesa and Mark Gil
Gabby Eigenmann (born 1978), Filipino actor, son of Mark Gil
Geoff Eigenmann (born 1985), Filipino actor, son of Michael de Mesa and Gina Alajar, brother of Ryan Eigenmann
Joseph Raphael Eigenmann, birth name of Mark Gil (1961–2014), Filipino actor, brother of Michael de Mesa and Cherie Gil
Michael Eigenmann, birth name of Michael De Mesa (born 1960), Filipino actor, brother of Mark Gil and Cherie Gil
Rosa Smith Eigenmann (1848–1947), American ichthyologist, wife of Carl Eigenmann
Ryan Eigenmann (born 1978), Filipino actor, son of Michael de Mesa and Gina Alajar, brother of Geoff Eigenmann
Tim Eigenmann, birth name of Sid Lucero (born 1981), Filipino actor, son of Mark Gil