Cognomen Wongwanruan (Wongwanruan 
) , across the world, is a very rare family name. The last name Wongwanruan is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Wongwanruan | Thailand |
Thanyakan, and Tassanathan