Surname Vagaja (Vagaja 
) , globally, is a rare family name. The family name Vagaja is characteristic of Slovenia, where it is quite a rare surname, Croatia, and Australia, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Vagaja | Malaysia, Australia, Slovenia, Germany, Croatia |
| ludvik vagaja SI (b. 1883) |
|
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| uroš vagaja SI (b. 1920) |
|