Last name ดาส (Dat 
, ดาส 
) , throughout the world, is a common surname. The family name ดาส is habitual in Aland Islands, where it is quite a common surname, Vietnam, where it is quite a rare surname, and Bahamas. Measured by absolute frequency, it is the most numerous in India, Vietnam, and Malaysia. Also, ดาส is the forename as well as the last name.