Surname Sunjong (Sunjong 
) , in the entire world, is a very rare last name. The last name Sunjong is characteristic of Cambodia, where it is a very rare surname, Malaysia, where it is an extremely rare surname, and China. Much more frequently, Sunjong is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Sunjong | South Korea, Malaysia, China, United States, India |