Family name جياى (جياى 
, Ghiyai 
, Ghiai 
) , across the world, is a very rare cognomen. The family name جياى is habitual in Netherlands, where it is a very rare surname, Germany, and Iran. Not in comparison with a country's population, it is commonest in the United States, Germany, and Iran. Likewise, جياى is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| جياى | Iraq |
| Ghiyai | India |
| Ghiai | Germany, Iran, United States, India, Netherlands |