Family name Gerdena (Gerdena 
) , all over the world, is a very rare last name. The cognomen Gerdena is habitual in Latvia, where it is a rare surname, the United Kingdom, where it is an extremely rare surname, and the United States. Likewise, Gerdena is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Gerdena | United Kingdom, United States, Latvia |