Surname Омелйанюк (Омелйанюк 
) , all over the world, is an extremely rare cognomen. The last name Омелйанюк is habitual in Eastern Europe, particularly Russia, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Омелйанюк | Russia |
Omelianiuk, Omelianyuk, and Omelyanyuk