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