Cognomen Vichitjongkol (Vichitjongkol 
) , across the world, is an extremely rare family name. The surname Vichitjongkol is habitual in Thailand, where it is an extremely rare surname, and the United States.
| VARIANT | COUNTRY |
|---|---|
| Vichitjongkol | United States, Thailand |
Worawan, Roongratana, and Worakanya