Last name Щесьняк (Щесьняк 
) , across the world, is an extremely rare surname. The cognomen Щесьняк is habitual in Eastern Europe, particularly Ukraine, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Щесьняк | Ukraine |
Scesniak, Schesnyak, Shchesniak, and Shchesnyak