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