Cognomen Kapustkina (Kapustkina 
, Капусткина 
) , all around the world, is quite a rare family name. The cognomen Kapustkina is characteristic of Russia, where it is a rare surname, Belarus, where it is a very rare surname, and Finland.
| VARIANT | COUNTRY |
|---|---|
| Kapustkina | Finland, Russia |
| Капусткина | Russia, Ukraine, Belarus |