All over the world, Gilboy (Gilboy 
) is a rare primarily masculine, but very infrequently female given name. The forename Gilboy is characteristic of Philippines, where it is a rare masculine name, and China, where it is an extremely rare epicene name. More frequently, Gilboy is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Gilboy | Australia, Philippines, Ireland, United Kingdom, United States |