Surname Jantharasuwan (Jantharasuwan 
) , around the globe, is a very rare family name. The family name Jantharasuwan is characteristic of Thailand, where it is a very rare surname, and China, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Jantharasuwan | Thailand, China |
Somjai, Preeda, and Chonthicha