Cognomen Clío (Clío 
) , all around the world, is an extremely rare surname. The surname Clío is habitual in Latin America and the Caribbean, particularly Uruguay, where it is a rare surname, and Argentina, where it is an extremely rare surname. Also, Clío is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Clío | Spain, Argentina, Mexico, Uruguay |