Surname 欣鑫 (欣鑫 
) , in all the world, is a rare last name. The surname 欣鑫 is characteristic of Eastern Asia, particularly China, where it is a very rare surname. More prevalently, 欣鑫 is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| 欣鑫 | China |