Family name Thorsuwan (Thorsuwan 
) , across the world, is a very rare surname. The last name Thorsuwan is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Thorsuwan | Thailand |
Amnart, Supawit, Nadtarika, Supitsara, and Chongkonnee