Surname ถ่าม (Tham 
, ถ่าม) , in the world, is a common family name. The cognomen ถ่าม 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). Not in comparison with a country's population, it most frequently occurs in South-eastern Asia, particularly Malaysia, Singapore, and Vietnam. Also, ถ่าม is the forename as well as the last name.