Cognomen Beljavskaja (Beljavskaja 
) , throughout the world, is a rare family name. The family name Beljavskaja is characteristic of Belarus, where it is quite a rare surname, Estonia, where it is a rare surname, and the United States, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Beljavskaja | Belarus, Estonia, United States |
| ol'ga porfir'jevna beljavskaja (b. 1925) |
|
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| natalja petrovna beljavskaja RU (b. 1965) |
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