Cognomen Roustazadeh (Roustazadeh 
) , across the world, is a very rare last name. The cognomen Roustazadeh is characteristic of Iran, where it is a very rare surname, and the United States, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Roustazadeh | United States, Iran |
| abazar roustazadeh researcher |
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