Family name Mykhailyuk (Mykhailyuk 
, Мыхаилюк 
) , across the world, is a very rare cognomen. The family name Mykhailyuk is habitual in Eastern Europe, particularly Russia, where it is a very rare surname, and Ukraine.
| VARIANT | COUNTRY |
|---|---|
| Mykhailyuk | Ukraine |
| Мыхаилюк | Russia |