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