Surname Khwanpetch (Khwanpetch 
) , in the entire world, is a very rare cognomen. The surname Khwanpetch is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname. Likewise, Khwanpetch is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Khwanpetch | Thailand |