Around the world, 晟昨 (晟昨 
) is a very rare boy's forename. The given name 晟昨 is habitual in Eastern Asia, particularly China, where it is an extremely rare boy's name. Very seldom, 晟昨 is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| 晟昨 | China |