Family name Сейт-Ягьяев (Сейт-Ягьяев 
) , worldwide, is an extremely rare cognomen. The surname Сейт-Ягьяев is habitual in Eastern Europe, particularly Russia, where it is an extremely rare surname. Parts of the name also exists independently as a first name Сейт, and a last name Ягьяев.
| VARIANT | COUNTRY |
|---|---|
| Сейт-Ягьяев | Russia |