Family name Jitchaisan (Jitchaisan 
) , around the globe, is a very rare last name. The cognomen Jitchaisan is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Jitchaisan | Thailand |
Manit, Benjawan, and Khuanruedee