Around the globe, 恺 (恺 
) is a common principally masculine, but very seldom feminine first name. The forename 恺 is habitual in Eastern Asia, particularly China, where it is quite a rare principally masculine, but very seldom female name. Very seldom, 恺 is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| 恺 | China |