Cognomen Acna (Acna 
) , across the world, is a very rare surname. The cognomen Acna is habitual in Honduras, where it is a very rare surname, Mexico, where it is an extremely rare surname, and Philippines. More frequently, Acna is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Acna | Spain, Philippines, Brazil, Mexico, India |