Family name Степаниантс (Степаниантс 
, Stepanyants 
) , around the globe, is a very rare cognomen. The last name Степаниантс is habitual in Russia, where it is a very rare surname, Canada, where it is an extremely rare surname, and the United States.
| VARIANT | COUNTRY |
|---|---|
| Степаниантс | Russia |
| Stepanyants | Canada, United States, Russia, Ukraine |