Cognomen Erdna (Erdna 
) , in the entire world, is a very rare last name. The cognomen Erdna is habitual in Belgium, where it is a rare surname, France, where it is a very rare surname, and Nigeria, where it is an extremely rare surname. Also, Erdna is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Erdna | Germany, Belgium, Nigeria, France, Brazil |