Family name Chachkovskaya (Chachkovskaya 
, Чачковская 
) , in the world, is a very rare last name. The family name Chachkovskaya is characteristic of Eastern Europe, particularly Belarus, where it is a very rare surname, and Russia.
| VARIANT | COUNTRY |
|---|---|
| Chachkovskaya | Russia |
| Чачковская | Russia, Belarus |