Cognomen Grecio (Grecio 
) , in the world, is a very rare family name. The surname Grecio is characteristic of Latin America and the Caribbean, particularly Brazil, where it is a very rare surname, Peru, and Venezuela, where it is an extremely rare surname. Not in comparison with a country's population, it is commonest in Brazil, Philippines, and Peru. More frequently, Grecio is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Grecio | Mexico, Brazil, Peru, Philippines, Venezuela |