Globally, Diio (Diio 
) is a rare mostly masculine, but uncommonly girly first name. The forename Diio is habitual in Indonesia, where it is a very rare male name, and India, where it is an extremely rare unisex name. Very seldom, Diio is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Diio | India, Indonesia, Canada |