Cognomen Osmidio (Osmidio 
) , in the entire world, is a very rare surname. The surname Osmidio is habitual in Latin America and the Caribbean, particularly Uruguay, where it is a rare surname, Brazil, where it is a very rare surname, and Venezuela, where it is an extremely rare surname. More frequently, Osmidio is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Osmidio | Peru, Colombia, Venezuela, Brazil, Uruguay |