Family name Арен (Aren 
, Арен 
, Χάρις 
) , globally, is quite a rare last name. The cognomen Арен is habitual in Armenia, where it is quite a common surname, Estonia, where it is quite a rare surname, and Libya, where it is a rare surname. In absolute terms, it most frequently occurs in India, Armenia, and Indonesia. More frequently, Арен is the forename as well as the last name.