Cognomen 忠蒨 (忠蒨 
) , worldwide, is a very rare surname. The cognomen 忠蒨 is characteristic of Eastern Asia, particularly China, where it is an extremely rare surname. More prevalently, 忠蒨 is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| 忠蒨 | China |