Surname Smaliak (Smaliak 
, Смалиак 
) , around the world, is a very rare last name. The cognomen Smaliak is characteristic of Lithuania, where it is a rare surname, Belarus, and Russia, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Smaliak | Lithuania, United States, Belarus |
| Смалиак | Russia |