Cognomen ธรรมวัตเจริญ (ธรรมวัตเจริญ 
) , in the world, is an extremely rare surname. The cognomen ธรรมวัตเจริญ is habitual in South-eastern Asia, particularly Thailand, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| ธรรมวัตเจริญ | Thailand |