Last name Lesyak (Lesyak 
, Лесяк 
) , all around the world, is a rare family name. The surname Lesyak is characteristic of Eastern Europe, particularly Belarus, where it is a rare surname, Ukraine, and Russia, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Lesyak | Canada |
| Лесяк | Ukraine, Russia, Belarus |