Last name Сейфединов (Сейфединов 
, Sejfedinov, Seifedinov 
) , globally, is a very rare cognomen. The cognomen Сейфединов is characteristic of Estonia, where it is a rare surname, Kyrgyzstan, and Russia, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Сейфединов | Kyrgyzstan, Russia |
| Seifedinov | Estonia |