Cognomen Айбен (Eiben 
, Айбен 
) , worldwide, is quite a rare surname. The cognomen Айбен is characteristic of Slovakia, where it is quite a rare surname, Germany, and Hungary, where it is a rare surname. Not in comparison with a country's population, it is commonest in Germany, the United States, and Slovakia. Much less frequently, Айбен is the forename as well as the last name.