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