Family name Kopen (Kopen 
, Копен 
) , in the entire world, is a rare surname. The cognomen Kopen is habitual in Czechia, where it is a rare surname, Netherlands, where it is a very rare surname, and Indonesia. In absolute terms, the name is most common in Indonesia, the United States, and Czechia. Likewise, Kopen is the forename as well as the last name.