Family name Suntiwijitkul (Suntiwijitkul 
) , around the world, is a very rare surname. The cognomen Suntiwijitkul is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Suntiwijitkul | Thailand |
Sittichai, Sutthiporn, and Suthiporn