Surname Vayrojboonyanon (Vayrojboonyanon 
) , in the world, is an extremely rare cognomen. The last name Vayrojboonyanon is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Vayrojboonyanon | Thailand |
Jiraroj, Teerayuth, and Kanitthakarn