Surname Gregorio Modesto (Gregorio Modesto 
) , throughout the world, is an extremely rare last name. The last name Gregorio Modesto is characteristic of Latin America and the Caribbean, particularly Chile, where it is a very rare surname. More prevalently, Gregorio Modesto is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Gregorio Modesto | Ecuador, Chile, Peru |