Stefaniya is of Slavic origin, deriving from the Greek name Stephanie, which means "crown" or "garland". It is a feminine given name popular among Eastern European cultures, particularly in Bulgaria and Russia. Spelled as Stefania in some variations, it has been used by notable individuals such as Stefania Ghermandi, an Italian opera singer, and Stefaniya Todorova, a Bulgarian folk singer.
Stefaniya is an uncommon name, with only five babies named Stefaniya born each year on average between 2018 and present.