Cognomen Сыртбай (Сыртбай 
) , in all the world, is a rare surname. The last name Сыртбай is characteristic of Kyrgyzstan, where it is quite a rare surname, and Russia, where it is an extremely rare surname. Likewise, Сыртбай is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Сыртбай | Kazakhstan, Russia, Kyrgyzstan |