Cognomen 灿瀚 (灿瀚 
) , all over the world, is a very rare surname. The family name 灿瀚 is characteristic of Eastern Asia, particularly China, where it is an extremely rare surname. More frequently, 灿瀚 is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| 灿瀚 | China |