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