Surname Samoiliuk (Samoiliuk 
, Самоилюк 
) , globally, is a very rare cognomen. The last name Samoiliuk is habitual in Lithuania, where it is a rare surname, Russia, where it is a very rare surname, and Ukraine, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Samoiliuk | Ukraine, Lithuania |
| Самоилюк | Russia |