Surname Amerto (Amerto 
) , worldwide, is a very rare cognomen. The surname Amerto is habitual in New Zealand, where it is a very rare surname, Venezuela, where it is an extremely rare surname, and the United States. More prevalently, Amerto is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Amerto | Egypt, Philippines, India, New Zealand, United States |