Surname 洪怀 (洪怀 
) , in all the world, is a very rare last name. The family name 洪怀 is habitual in Eastern Asia, particularly China, where it is an extremely rare surname. More frequently, 洪怀 is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| 洪怀 | China |