Last name Chernjavskaja (Чернявская 
, Chernjavskaja ) , throughout the world, is a common cognomen. The surname Chernjavskaja is habitual in Eastern Europe, particularly Belarus, where it is quite a common surname, Russia, where it is quite a rare surname, and Moldova. Not in comparison with a country's population, it most frequently occurs in Russia, Belarus, and Kazakhstan.
| VARIANT | COUNTRY |
|---|---|
| Чернявская | Kazakhstan, Russia, Kyrgyzstan, Belarus, Moldova |
| Chernjavskaja | Belarus |
| tamara ignatyevna chernjavskaja RU (b. 1934) |
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| m.a. chernjavskaja botanist |
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