Cognomen Guilari (Guilari 
) , in the world, is an extremely rare surname. The surname Guilari is habitual in Latin America and the Caribbean, particularly Honduras, where it is a very rare surname, and Brazil, where it is an extremely rare surname. Likewise, Guilari is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Guilari | Honduras, Brazil |