Around the world, Сергнй (Сергнй 
, Sergni 
) is a very rare boy's forename. The forename Сергнй is habitual in Eastern Europe, particularly Russia, where it is a very rare boy's name. Very seldom, Сергнй is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Сергнй | Russia, Ukraine |
| Sergni | France, Brazil |