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