Cognomen 희종 (희종 
, Huijong 
) , throughout the world, is a very rare surname. The surname 희종 is habitual in Thailand, where it is a very rare surname, and China, where it is an extremely rare surname. Much more frequently, 희종 is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| 희종 | South Korea |
| Huijong | Canada, Thailand, United States, China |