Worldwide, 昱桓 (昱桓 
) is a very rare unisex forename. The forename 昱桓 is habitual in Eastern Asia, particularly China, where it is an extremely rare gender-neutral name. Very seldom, 昱桓 is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| 昱桓 | China |