Last name Iunan (Iunan 
, Юнан 
) , globally, is a very rare surname. The last name Iunan is characteristic of Georgia, where it is a very rare surname, Kazakhstan, and Russia, where it is an extremely rare surname. Not in comparison with a country's population, the name is most common in China, Russia, and Georgia. More frequently, Iunan is the forename as well as the last name.