Last name Yony Guillermo (Yony Guillermo 
) , in the world, is an extremely rare family name. The cognomen Yony Guillermo is habitual in Latin America and the Caribbean, particularly Chile, where it is a very rare surname. More prevalently, Yony Guillermo is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Yony Guillermo | Ecuador, Chile, Peru |