Family name Sayyan (Sayyan 
, Саиян 
, Сайян ) , throughout the world, is a rare last name. The family name Sayyan is characteristic of Russia, where it is a rare surname, Bulgaria, and Saudi Arabia, where it is a very rare surname. Measured by absolute frequency, it is the most numerous in Russia, Myanmar, and Saudi Arabia. Likewise, Sayyan is the forename as well as the last name.