Surname جياي (جياي 
, Giay 
) , worldwide, is a rare family name. The family name جياي is habitual in Argentina, where it is a rare surname, Hungary, and Austria. Not in comparison with a country's population, it is the most numerous in Indonesia, Argentina, and Italy. Also, جياي is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| جياي | Iraq |
| Giay | Indonesia, Italy, Vietnam, Argentina, Myanmar |