Worldwide, 瀚祺 (瀚祺 
) is a very rare unisex given name. The first name 瀚祺 is habitual in Eastern Asia, particularly China, where it is an extremely rare gender-neutral name. Much less frequently, 瀚祺 is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| 瀚祺 | China |