Family name กอวัฒนสิริ (กอวัฒนสิริ 
) , all around the world, is a very rare last name. The surname กอวัฒนสิริ is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| กอวัฒนสิริ | Thailand |
รัตนา, วิโรจน์, and กิตติภัทท์