Cognomen 상홍 (상홍 
, Sanghong 
) , throughout the world, is a very rare family name. The surname 상홍 is characteristic of Thailand, where it is a very rare surname, and Peru, where it is an extremely rare surname. Much more frequently, 상홍 is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| 상홍 | South Korea |
| Sanghong | South Korea, Peru, United States, Thailand |