Cognomen Sïmõ (Sïmõ 
) , globally, is a rare surname. The family name Sïmõ is characteristic of Northern Africa, particularly Morocco, where it is a rare surname, and Algeria. More prevalently, Sïmõ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Sïmõ | Algeria, Morocco |