Family name กิรวัฒน์ (กิรวัฒน์ 
) , globally, is an extremely rare last name. The surname กิรวัฒน์ is characteristic of South-eastern Asia, particularly Thailand, where it is an extremely rare surname. More prevalently, กิรวัฒน์ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| กิรวัฒน์ | Thailand |