Surname เซียมซี (เซียมซี 
, Siamsi 
, Semyeam ) , in the entire world, is a very rare cognomen. The last name เซียมซี is habitual in South-eastern Asia, particularly Indonesia, where it is a very rare surname, and Thailand, where it is an extremely rare surname. Much less frequently, เซียมซี is the forename as well as the last name.