Family name Belostockaia (Belostockaia 
, Белостоцкая 
) , globally, is a rare cognomen. The cognomen Belostockaia is characteristic of Russia, where it is a rare surname, Belarus, and Kazakhstan.
| VARIANT | COUNTRY |
|---|---|
| Belostockaia | Georgia |
| Белостоцкая | Russia, Ukraine, Kazakhstan, Belarus |