Cognomen Jahian (Jahian 
, Жахян 
) , in the world, is a very rare last name. The surname Jahian is characteristic of Russia, where it is a very rare surname, Israel, and Pakistan, where it is an extremely rare surname. Measured by absolute frequency, this name is the most popular in Russia, Pakistan, and India. Much less frequently, Jahian is the forename as well as the last name.