Family name 羲亨 (羲亨 
) , all around the world, is a very rare cognomen. The last name 羲亨 is characteristic of Eastern Asia, particularly China, where it is an extremely rare surname. More prevalently, 羲亨 is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| 羲亨 | China |