Globally, Illio (Illio 
) is a very rare male forename. The given name Illio is habitual in Italy, where it is a very rare male name, and Brazil, where it is an extremely rare masculine name. Much less frequently, Illio is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Illio | Italy, Brazil, United States, Israel, France |
| illio capocci Dominican military personnel, DO (b. 1950) |
|