Family name Tudjan (Tudjan 
) , around the globe, is a rare surname. The surname Tudjan is habitual in Croatia, where it is a rare surname, Indonesia, where it is a very rare surname, and Canada. In absolute terms, it is the most numerous in Indonesia, Croatia, and the United States. Also, Tudjan is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Tudjan | Brazil, United States, Croatia, Indonesia, Canada |