Family name Степецкий (Степецкий 
) , throughout the world, is a very rare cognomen. The family name Степецкий is habitual in Kazakhstan, where it is a very rare surname, Russia, where it is an extremely rare surname, and Ukraine.
| VARIANT | COUNTRY |
|---|---|
| Степецкий | Kazakhstan, Russia, Ukraine |
Stepetskii, Stepetskij, and Stepetskiy