Surname Pikulyak (Pikulyak 
, Пикуляк 
) , around the globe, is a very rare family name. The surname Pikulyak is characteristic of Ukraine, where it is a very rare surname, Russia, and the United States, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Pikulyak | United States |
| Пикуляк | Ukraine, Russia |