Cognomen Юлииа (Iuliia 
, Juliia 
, Iouliia 
) , globally, is a rare surname. The surname Юлииа is habitual in Russia, where it is a rare surname, Hungary, where it is a very rare surname, and Greece. Measured by absolute frequency, the name is most common in Russia, China, and Indonesia. More prevalently, Юлииа is the forename as well as the last name.