Family name Саия (Saija 
, Saiya 
, Saiia 
) , around the world, is quite a common cognomen. The last name Саия is characteristic of Laos, where it is quite a rare surname, Italy, and Indonesia, where it is a rare surname. Not in comparison with a country's population, it most frequently occurs in Indonesia, India, and Italy. Also, Саия is the forename as well as the last name.