Cognomen 楚玉 (楚玉 
, 초옥 
) , in the entire world, is a rare family name. The surname 楚玉 is habitual in Eastern Asia, particularly China, where it is a very rare surname. More frequently, 楚玉 is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| 楚玉 | China |
| 초옥 | South Korea |