Family name ธรรมศาสน์ (ธรรมศาสน์ 
) , across the world, is an extremely rare last name. The surname ธรรมศาสน์ is characteristic of South-eastern Asia, particularly Thailand, where it is an extremely rare surname. More prevalently, ธรรมศาสน์ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| ธรรมศาสน์ | Thailand |