Surname Sangja (Sangja 
) , globally, is a rare cognomen. The cognomen Sangja is characteristic of South Korea, where it is a rare surname, Thailand, and India, where it is an extremely rare surname. Likewise, Sangja is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Sangja | South Korea, Thailand, United States, India, New Zealand |