Last name 冗椿 (冗椿 
) , all over the world, is a very rare cognomen. The cognomen 冗椿 is habitual in Eastern Asia, particularly China, where it is an extremely rare surname. More frequently, 冗椿 is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| 冗椿 | China |