Cognomen Жылдыз (Жылдыз 
, Jyldyz 
) , worldwide, is a common surname. The surname Жылдыз is habitual in Kyrgyzstan, where it is a common surname, and China, where it is an extremely rare surname. More prevalently, Жылдыз is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Жылдыз | Kazakhstan, Kyrgyzstan, Azerbaijan, Russia, Turkey |
| Jyldyz | China, Kyrgyzstan, United Kingdom, United States, Russia |