Surname Saiyakul (Saiyakul 
) , throughout the world, is a very rare last name. The surname Saiyakul is characteristic of Thailand, where it is a very rare surname, and India, where it is an extremely rare surname. Likewise, Saiyakul is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Saiyakul | India, Thailand |