Cognomen Sudjai (Sudjai 
) , worldwide, is quite a rare last name. The last name Sudjai is habitual in South-eastern Asia, particularly Thailand, where it is quite a rare surname, Indonesia, where it is a rare surname, and Malaysia, where it is a very rare surname. Also, Sudjai is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Sudjai | Germany, Malaysia, Thailand, Indonesia, United States |