Cognomen 楚寒 (楚寒 
) , across the world, is a very rare surname. The last name 楚寒 is habitual in Eastern Asia, particularly China, where it is an extremely rare surname. More prevalently, 楚寒 is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| 楚寒 | China |