Last name أوسان (أوسان 
, Osann 
) , in all the world, is a rare cognomen. The last name أوسان is habitual in Switzerland, where it is a rare surname, Germany, and the United States, where it is an extremely rare surname. Also, أوسان is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| أوسان | Yemen |
| Osann | Canada, United States, Switzerland, Germany |