Cognomen Jankevich (Jankevich 
, Жанкевич 
, Янкевич 
) , globally, is quite a rare surname. The family name Jankevich is habitual in Eastern Europe, particularly Belarus, where it is quite a rare surname, Ukraine, and Russia, where it is a rare surname.
| VARIANT | COUNTRY |
|---|---|
| Jankevich | Canada |
| Жанкевич | Kazakhstan, Russia, Ukraine, Belarus |
| Янкевич | Kazakhstan, Russia, Kyrgyzstan, Belarus, Ukraine |