Family name ธรรมอุโมงค์ (ธรรมอุโมงค์ 
) , in the entire world, is a very rare last name. The family name ธรรมอุโมงค์ is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| ธรรมอุโมงค์ | Thailand |