Cognomen Vlasiu (Vlasiu 
) , across the world, is a rare surname. The surname Vlasiu is characteristic of Romania, where it is quite a rare surname, Bulgaria, where it is a rare surname, and Australia, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Vlasiu | Australia, Romania, South Africa, Canada, Bulgaria |
| ion vlasiu RO (b. 1908) |
|
|
| ioana vlasiu RO (b. 1943) |
|