Last name Sudja (Sudja 
) , in all the world, is a rare surname. The family name Sudja is habitual in Indonesia, where it is a rare surname, France, where it is a very rare surname, and Thailand, where it is an extremely rare surname. In absolute terms, it is commonest in Indonesia, France, and the United States. Also, Sudja is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Sudja | China, Thailand, France, Indonesia, United States |