Family name Сейрек (Сейрек 
) , worldwide, is a very rare cognomen. The cognomen Сейрек is characteristic of Kyrgyzstan, where it is a very rare surname, Ukraine, and Kazakhstan. Much less frequently, Сейрек is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Сейрек | Russia, Kyrgyzstan, Ukraine, Kazakhstan |