Last name Acerni (Acerni 
) , throughout the world, is a very rare family name. The surname Acerni is habitual in Italy, where it is a very rare surname, France, where it is an extremely rare surname, and Germany. Not in comparison with a country's population, it is commonest in Italy, the United States, and France.
| VARIANT | COUNTRY |
|---|---|
| Acerni | United States, France, Germany, Italy |