Surname 洁贞 (洁贞 
) , throughout the world, is quite a rare cognomen. The family name 洁贞 is habitual in Eastern Asia, particularly China, where it is a very rare surname. More prevalently, 洁贞 is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| 洁贞 | China |