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