Cognomen Яна-Стефанія (Яна-Стефанія 
) , in the entire world, is an extremely rare last name. Much more prevalently, Яна-Стефанія is the forename as well as the last name. Parts of the name also exists independently as a first name Яна, and a first name Стефанія.
| VARIANT | COUNTRY |
|---|---|
| Яна-Стефанія | Ukraine |