Last name ถิรพรวิทูร (ถิรพรวิทูร 
) , globally, is a very rare family name. The cognomen ถิรพรวิทูร is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| ถิรพรวิทูร | Thailand |
ศรณ์รังสรรค์, and ธวัชชัย