Surname Sangthai (Sangthai 
) , worldwide, is a very rare last name. The last name Sangthai is habitual in Thailand, where it is a very rare surname, Myanmar, and the United States, where it is an extremely rare surname. Also, Sangthai is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Sangthai | India, Myanmar, United States, Thailand |