Cognomen Vajna (Vajna 
, Вайна 
) , across the world, is quite a rare family name. The surname Vajna is characteristic of Hungary, where it is quite a rare surname, Romania, and Austria, where it is a rare surname. Not in comparison with a country's population, it is the most numerous in Hungary, Romania, and India. Very seldom, Vajna is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Vajna | Germany, Romania, Hungary, United States, India |
| Вайна | Ukraine |
| gabriel von vajna (1747-1793) (b. 1747) |
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| terézia vajna Hungarian land owner, RO (b. 1805) |
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vajna gábor Hungarian politician (1891–1946), HU (b. 1891) |
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| vajna vilmos doctor, dentist, and lecturer from Romania (1854–1932), HU (b. 1854) |
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| béla pávai vajna (1854–1913), RO (b. 1854) |
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| károly vajna RO (b. 1851) |
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andy vajna Hungarian film producer, HU (b. 1944) |
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| vajna zoltán HU (b. 1928) |
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| zsolt vajna badminton player, HU (b. 1941) |
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| vajna lászló Hungarian botanist, HU |
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| miklós vajna Software developer, HU |
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| vajna márton Hungarian politician, HU |
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| anton-árpád vajna Romanian politician from Tarcea, Bihor County, RO |
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| sándor vajna researcher |
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| lászló károly vajna RO (b. 1976) |
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Mr, Erika, Emese, Zsolt, Évike, Marika, Sandor, Susana, Andrew, Attila, Edith, Botond, Péter, Robert, Gábor, Laszlo, Tamás, Thomas, Tímea, Tãmea, Noémi, Kalman, Novie, Tunde, Timea, Ms, Ne, Rod, Eva, Ceci, Reka, Jade, Nora, Imre, Zita, Susan, Béla, Klara, Petra, Peter, Larry, Linda, Lilla, Tamas, Tamã, Trudy, Eugene, and Victor