Cognomen Śm (Śm 
) , in the entire world, is a rare family name. The last name Śm is habitual in Morocco, where it is a rare surname, Egypt, and Poland, where it is a very rare surname. Also, Śm is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Śm | Poland, Morocco, Myanmar, Egypt |