Surname Vongtrakullek (Vongtrakullek 
) , across the world, is an extremely rare cognomen. The last name Vongtrakullek is habitual in South-eastern Asia, particularly Thailand, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Vongtrakullek | Thailand |
Keurkoon, Kullaporn, and Kullaphorn