Across the world, 琦贞 (琦贞 
) is a very rare feminine first name. The forename 琦贞 is habitual in Eastern Asia, particularly China, where it is an extremely rare female name. Very seldom, 琦贞 is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| 琦贞 | China |