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