Surname גאי (Guy 
, Gae 
, Geye 
) , all around the world, is a widespread last name. The last name גאי is habitual in Israel, where it is a common surname, Saint Vincent and the Grenadines, and Trinidad and Tobago, where it is quite a common surname (explore the name in all countries). Not in comparison with a country's population, it most frequently occurs in the United States, France, and Israel. More frequently, גאי is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Guy | France, Democratic Republic of the Congo, United States, Cameroon, Ivory Coast |
| Gae | France, Democratic Republic of the Congo, United States, Belgium, United Kingdom |
| Geye | Ethiopia, Nigeria, United States, Myanmar, South Africa |
| גאי | Israel |