Family name Ілля-Степан (Ілля-Степан 
) , around the globe, is an extremely rare surname. Predominantly, Ілля-Степан is the forename as well as the last name. Parts of the name also exists independently as a first name Ілля, and a first name Степан.
| VARIANT | COUNTRY |
|---|---|
| Ілля-Степан | Ukraine |