Family name ธรรมโกสิทธิ์ (ธรรมโกสิทธิ์ 
) , throughout the world, is a very rare cognomen. The family name ธรรมโกสิทธิ์ is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| ธรรมโกสิทธิ์ | Thailand |