Cognomen Koiran (Koiran 
) , all around the world, is a very rare last name. The cognomen Koiran is characteristic of Western Europe, particularly France, where it is a very rare surname. Also, Koiran is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Koiran | France, India |
|
pascal koiran Ph.D. École Normale Supérieure de Lyon 1993, FR (b. 1969) |
|