Family name Thirawad (ถิรวัฒน์ 
, Thirawad ) , worldwide, is a very rare last name. The surname Thirawad is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname. Much more frequently, Thirawad is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| ถิรวัฒน์, Thirawad | Thailand |