Last name Orphanus (Orfan 
, Orfe 
, Orfano 
) , throughout the world, is quite a rare cognomen. The family name Orphanus is characteristic of Italy, where it is quite a rare surname, Philippines, and Argentina. Very seldom, Orphanus is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Orfan | Argentina, United States, Afghanistan, Nigeria, Italy |
| Orfe | Argentina, United States, Nigeria, Democratic Republic of the Congo, Brazil |
| Orfano | Argentina, United States, Philippines, Italy, Brazil |
| Orphanus | United States |