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