Cognomen Beliavcev (Белявцев 
, Beliavcev 
) , worldwide, is quite a rare surname. The surname Beliavcev is habitual in Russia, where it is a rare surname, Lithuania, and Kazakhstan. Measured by absolute frequency, the name is most common in Russia, Ukraine, and Kazakhstan.
| VARIANT | COUNTRY |
|---|---|
| Белявцев | Kazakhstan, Russia, Kyrgyzstan, Belarus, Ukraine |
| Beliavcev | Israel, Lithuania |