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