Surname ดุลย์ (Dun 
, Balance 
, ดุลย์ 
) , all around the world, is a common family name. The surname ดุลย์ is habitual in Netherlands, where it is quite a rare surname, Bahamas, and Malaysia. Measured by absolute frequency, this name is the most popular in China, Indonesia, and Malaysia. Much less frequently, ดุลย์ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Dun | China, Venezuela, Malaysia, Indonesia, Myanmar |
| Balance | China, Netherlands, Malaysia, Indonesia, Myanmar |
| ดุลย์ | Thailand |
อุลิต, ลือสวัสดิ์, เมตตา, สามารถ, วรรณภพ, เหลาสกุล, จุลกะเศียน, ดวงเกตุ, and กาญจนวรรณ