Cognomen جاير (Gear 
, Gair , جاير 
) , around the world, is a common family name. The surname جاير is characteristic of New Zealand, where it is quite a rare surname, Australia, and the United Kingdom. Measured by absolute frequency, it is commonest in the United Kingdom, the United States, and Indonesia. Very seldom, جاير is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Gear, Gair | Australia, Canada, United Kingdom, United States, Indonesia |
| جاير | Iraq, Yemen, Egypt, Saudi Arabia |