Cognomen Эйдельберг (Eidelberg 
, Эйдельберг 
) , all around the world, is a rare family name. The surname Эйдельберг is characteristic of Israel, where it is a rare surname, the United States, where it is a very rare surname, and Canada. Measured by absolute frequency, it is commonest in the United States, Russia, and Israel. Very seldom, Эйдельберг is the forename as well as the last name.