Family name Hlavaj (Hlavaj 
) , throughout the world, is a rare last name. The family name Hlavaj is characteristic of Eastern Europe, particularly Hungary, where it is a rare surname, Slovakia, and Czechia.
| VARIANT | COUNTRY |
|---|---|
| Hlavaj | Czechia, Hungary, United States, Canada, Slovakia |
| jozef hlavaj (b. 1885) |
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| gejza hlavaj Czechoslovak member of Czechoslovak national parliament and slovak nation politician (b. 1926) |
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