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