Surname Oscar Demetrio (Oscar Demetrio 
) , in the world, is a very rare last name. The last name Oscar Demetrio is habitual in Latin America and the Caribbean, particularly Chile, where it is a very rare surname. More frequently, Oscar Demetrio is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Oscar Demetrio | Costa Rica, Mexico, Ecuador, Chile, Peru |