Surname ثيم (Tham 
, Thiem , ثيم) , worldwide, is a common family name. The family name ثيم is characteristic of Singapore, where it is a common surname, Malaysia, where it is quite a common surname, and Macao (explore the name in all countries). Measured by absolute frequency, the name is most common in Malaysia, Singapore, and Germany. Also, ثيم is the forename as well as the last name.