Cognomen Uilay (Uilay 
) , all over the world, is a rare family name. The last name Uilay is habitual in India, where it is a very rare surname, and Turkey, where it is an extremely rare surname. Also, Uilay is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Uilay | India, Turkey |