Family name ธนากูลธัญโรจน์ (ธนากูลธัญโรจน์ 
) , all over the world, is an extremely rare surname. The family name ธนากูลธัญโรจน์ is characteristic of South-eastern Asia, particularly Thailand, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| ธนากูลธัญโรจน์ | Thailand |