Cognomen ดำ (Dam 
, Blacky 
, ดำ) , worldwide, is a common surname. The last name ดำ is habitual in Netherlands, where it is quite a common surname, Denmark, and Iceland (explore the name in all countries). Not in comparison with a country's population, this name is the most popular in India, Netherlands, and Vietnam. Very seldom, ดำ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Dam | Denmark, Vietnam, United States, India, Netherlands |
| Blacky | Myanmar, United States, India, Indonesia, Algeria |