Surname ธัญญมงคลพงศ์ (ธัญญมงคลพงศ์ 
) , around the globe, is a very rare family name. The surname ธัญญมงคลพงศ์ is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| ธัญญมงคลพงศ์ | Thailand |