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