Family name Avdeychik (Avdeychik 
, Авдейчик 
) , globally, is quite a rare surname. The surname Avdeychik is characteristic of Eastern Europe, particularly Belarus, where it is quite a rare surname, Ukraine, where it is a rare surname, and Russia.
| VARIANT | COUNTRY |
|---|---|
| Avdeychik | Ukraine, Russia, United States, Belarus |
| Авдейчик | Kazakhstan, Belarus, Kyrgyzstan, Russia, Ukraine |