Last name タム (Tam 
, Tham , タム 
) , around the globe, is a widespread family name. The surname タム is characteristic of Macao, where it is a widespread surname, Hong Kong, and British Virgin Islands (explore the name in all countries). Not in comparison with a country's population, the name is most common in Hong Kong, Malaysia, and China. Likewise, タム is the forename as well as the last name.