Cognomen Oussman (Oussman 
) , all over the world, is a rare surname. The cognomen Oussman is characteristic of Lebanon, where it is quite a rare surname, Cameroon, and Libya, where it is a rare surname. In absolute terms, it most frequently occurs in Cameroon, Lebanon, and Morocco. Also, Oussman is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Oussman | Lebanon, Algeria, Morocco, Cameroon, Libya |