Cognomen Dalyya (Далия 
, Dalyya 
) , globally, is a very rare family name. The cognomen Dalyya is characteristic of Kyrgyzstan, where it is a very rare surname, Russia, and India, where it is an extremely rare surname. More prevalently, Dalyya is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Далия | Kyrgyzstan, Russia, Bulgaria, Kazakhstan, Belarus |
| Dalyya | Nigeria, India |