Around the world, Gasio (Gasio 
) is a very rare mostly masculine, but seldom feminine forename. The forename Gasio is characteristic of Fiji, where it is quite a rare masculine name, and Italy, where it is a very rare unisex name. Also, Gasio is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Gasio | Spain, Brazil, Italy, United States, Fiji |