Cognomen Walanchapruk (Walanchapruk 
) , around the globe, is a very rare surname. The cognomen Walanchapruk is habitual in South-eastern Asia, particularly Thailand, where it is a rare surname.
| VARIANT | COUNTRY |
|---|---|
| Walanchapruk | Thailand |
Uthai, Chanika, Suchanuch, Suphawadee, and Chainarong