Cognomen Степанян (Степанян 
, Stepanian 
, Stepanyan ) , worldwide, is a common last name. The surname Степанян is habitual in Armenia, where it is quite a common surname, Russia, and Georgia, where it is quite a rare surname. In absolute terms, it is the most numerous in Russia, Armenia, and the United States. Likewise, Степанян is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Степанян | Russia, Belarus, Kazakhstan, Ukraine, Armenia |
| Stepanian, Stepanyan | France, Russia, Georgia, Armenia, United States |
| Stepanjan | Netherlands, Germany, Slovenia, Estonia, United States |
Stepanyants, and Степаньянц
| степанян, карен ашотович Russian literary critic (1952-2018), RU (b. 1952) |
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| араик степанян russian-armenian political scientist, RU (b. 1968) |
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| акоп степанян Russian mixed martial artist, RU (b. 1986) |
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| артур степанян footballer, RU (b. 1987) |
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