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