Globally, Gregorio Ismael (Gregorio Ismael 
) is a very rare boy's forename. The forename Gregorio Ismael is characteristic of Latin America and the Caribbean, particularly Chile, where it is a very rare boy's name, and Peru. Very seldom, Gregorio Ismael is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Gregorio Ismael | Mexico, Chile, Ecuador, Peru |