Cognomen Arnoldo Jacinto (Arnoldo Jacinto 
) , in all the world, is an extremely rare family name. The last name Arnoldo Jacinto is habitual in Latin America and the Caribbean, particularly Chile, where it is an extremely rare surname. More prevalently, Arnoldo Jacinto is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Arnoldo Jacinto | Chile, Ecuador |