Surname Biliūnas (Biliūnas 
, Билюнас 
) , all around the world, is a very rare family name. The last name Biliūnas is characteristic of Lithuania, where it is a rare surname, Russia, where it is a very rare surname, and Kazakhstan.
| VARIANT | COUNTRY |
|---|---|
| Biliūnas | Lithuania |
| Билюнас | Kazakhstan, Russia, Ukraine |
| antanas biliūnas Lithuanian poet, LT (b. 1905) |
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| algirdas biliūnas Lithuanian association football player, LT (b. 1947) |
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| mykolas biliūnas LT (b. 1945) |
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