Family name Στεφανία (Stefania 
, Stephania 
, Stefánia 
) , worldwide, is a widespread surname. The last name Στεφανία is habitual in Poland, where it is a widespread surname, Romania, where it is quite a common surname, and Greece. Measured by absolute frequency, it most frequently occurs in Poland, Romania, and Italy. Also, Στεφανία is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Stefania | Poland, Colombia, Tanzania, Romania, Italy |
| Stephania | Brazil, Colombia, Tanzania, Argentina, Italy |
| Stefánia | Romania, Hungary |
| Στεφανία | Greece |