Cognomen เซียะ (Sia 
, Seie 
, เซียะ 
) , in the world, is a common last name. The family name เซียะ is characteristic of Malaysia, where it is quite a common surname, Brunei, and Cayman Islands (explore the name in all countries). Measured by absolute frequency, it is commonest in South-eastern Asia, particularly Malaysia, Philippines, and Indonesia. Also, เซียะ is the forename as well as the last name.