Last name Frantchouk (Франчук 
, Frantchouk 
) , all around the world, is quite a common family name. The family name Frantchouk is habitual in Eastern Europe, particularly Ukraine, where it is quite a common surname, Belarus, where it is quite a rare surname, and Russia.
| VARIANT | COUNTRY |
|---|---|
| Франчук | Kazakhstan, Russia, Georgia, Belarus, Ukraine |
| Frantchouk | Canada, Spain, United States |