Surname Udjang (Udjang 
) , throughout the world, is quite a rare cognomen. The last name Udjang is characteristic of South-eastern Asia, particularly Indonesia, where it is a rare surname, Philippines, where it is an extremely rare surname, and Thailand. More frequently, Udjang is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Udjang | Philippines, Indonesia, United States, Thailand |