Cognomen Vasylius (Vasylius 
) , in all the world, is a rare surname. The cognomen Vasylius is characteristic of Lithuania, where it is quite a rare surname, and Czechia, where it is a rare surname.
| VARIANT | COUNTRY |
|---|---|
| Vasylius | Czechia, Lithuania |
| valdas vasylius Lithuanian basketball player, LT (b. 1983) |
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| gytis vasylius |
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