Cognomen ธัญบูรณ์ (Tanyaboon 
, ธัญบูรณ์ , Thunyaboon ) , around the world, is an extremely rare last name. The surname ธัญบูรณ์ is characteristic of South-eastern Asia, particularly Thailand, where it is an extremely rare surname. Much more prevalently, ธัญบูรณ์ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Dhanyaboon, Thunyaboon, ธัญบูรณ์, Tanyaboon | Thailand |
Thanyaboon, and Thanyaboorn