Family name 根嘉成 (根嘉成 
) , worldwide, is a very rare surname. The family name 根嘉成 is characteristic of Eastern Asia, particularly China, where it is an extremely rare surname. More frequently, 根嘉成 is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| 根嘉成 | China |