Surname Eyzen (Eyzen 
, Эйзен 
) , around the globe, is a very rare cognomen. The cognomen Eyzen is habitual in Kazakhstan, where it is a very rare surname, Russia, and Peru, where it is an extremely rare surname. In absolute terms, the name is most common in Russia, Kazakhstan, and the United States. Very seldom, Eyzen is the forename as well as the last name.