Cognomen Therdchanakul (Therdchanakul 
) , all over the world, is an extremely rare family name. The cognomen Therdchanakul is habitual in South-eastern Asia, particularly Thailand, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Therdchanakul | Thailand |
Virada, and Pattraporn