Last name Roumian (Румян 
, Roumian 
) , in all the world, is a rare cognomen. The cognomen Roumian is characteristic of Bulgaria, where it is a rare surname, Russia, where it is a very rare surname, and Greece. Measured by absolute frequency, it is commonest in Russia, France, and Bulgaria. Much less frequently, Roumian is the forename as well as the last name.