Surname גילרוי (Gilroy 
, גילרוי 
) , in all the world, is quite a common last name. The cognomen גילרוי is habitual in Jersey, where it is quite a common surname, Ireland, and Reunion. Not in comparison with a country's population, it is the most numerous in the United States, the United Kingdom, and Canada. Much less frequently, גילרוי is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Gilroy | Australia, Canada, Ireland, United Kingdom, United States |
| גילרוי | Israel |