Cognomen ถิรวุธ (ถิรวุธ 
) , in all the world, is a very rare surname. The cognomen ถิรวุธ is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname. Likewise, ถิรวุธ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| ถิรวุธ | Thailand |