Surname Саиян (Saiyan 
, Saijan 
, Саиян 
) , globally, is quite a rare last name. The last name Саиян is characteristic of South-eastern Asia, particularly Indonesia, where it is a rare surname, Malaysia, and Thailand. Not in comparison with a country's population, this name is the most popular in Indonesia, Russia, and Bangladesh. Also, Саиян is the forename as well as the last name.