Cognomen 暑洪 (暑洪 
) , in the entire world, is a very rare surname. The surname 暑洪 is habitual in Eastern Asia, particularly China, where it is an extremely rare surname. More prevalently, 暑洪 is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| 暑洪 | China |