Last name เสีย (Sia 
, Weret 
, เสีย ) , around the world, is a common cognomen. The surname เสีย is habitual in Malaysia, where it is quite a common surname, Brunei, and Cayman Islands (explore the name in all countries). Measured by absolute frequency, the name is most common in South-eastern Asia, particularly Malaysia, Philippines, and Indonesia. Likewise, เสีย is the forename as well as the last name.