Family name ดาศ (Dat 
, ดาศ 
) , all around the world, is a common last name. The cognomen ดาศ is habitual in Aland Islands, where it is quite a common surname, Vietnam, where it is quite a rare surname, and Bahamas. In absolute terms, it is commonest in India, Vietnam, and Malaysia. Also, ดาศ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Dat | Myanmar, Vietnam, United States, Malaysia, India |
| ดาศ | Thailand |