Across the world, 鸿延 (鸿延 
) is a rare epicene given name. The forename 鸿延 is habitual in Eastern Asia, particularly China, where it is an extremely rare gender-neutral name. Very seldom, 鸿延 is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| 鸿延 | China |