Family name Kooshan (Kooshan 
) , in the world, is a rare cognomen. The family name Kooshan is characteristic of Algeria, where it is a very rare surname, Iran, and the United States, where it is an extremely rare surname. Measured by absolute frequency, this name is the most popular in Iran, Algeria, and India. Likewise, Kooshan is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Kooshan | India, United States, Algeria, Iran |