Family name Preedachaiyakul (Preedachaiyakul 
) , in the world, is a very rare surname. The last name Preedachaiyakul is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Preedachaiyakul | Thailand |
Chawapat, Supachoke, Duangtida, Papatchaya, and Thanchanok