Surname Жылдызай (Жылдызай 
) , in the world, is a rare family name. The cognomen Жылдызай is habitual in Central Asia, particularly Kyrgyzstan, where it is quite a rare surname. Also, Жылдызай is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Жылдызай | Kazakhstan, Russia, Kyrgyzstan |