>
Cognomen Guseyn (Гусейн
, Гусеин
, Guseyn
) , throughout the world, is a rare last name. The cognomen Guseyn is characteristic of Azerbaijan, where it is quite a rare surname, Kyrgyzstan, where it is a rare surname, and Kazakhstan. Measured by absolute frequency, it is the most numerous in Azerbaijan, Russia, and Kazakhstan. More frequently, Guseyn is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Гусейн | Kazakhstan, Russia, Poland, Azerbaijan, Ukraine |
| Гусеин | Kazakhstan, Russia, Kyrgyzstan, Azerbaijan, Ukraine |
| Guseyn | France, United States, Azerbaijan, Russia |