Last name Kryvobok (Кривобок 
, Kryvobok 
) , all over the world, is quite a rare cognomen. The surname Kryvobok is characteristic of Ukraine, where it is quite a rare surname, Kazakhstan, where it is a rare surname, and Russia.
| VARIANT | COUNTRY |
|---|---|
| Кривобок | Kazakhstan, Ukraine, Belarus, Kyrgyzstan, Russia |
| Kryvobok | Canada, Ukraine, United States |