Last name Waiwitriyakul (Waiwitriyakul 
) , throughout the world, is an extremely rare family name. The surname Waiwitriyakul is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Waiwitriyakul | Thailand |
Phatthira, and Jantraporn