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