Last name Kosztolányi (Kosztolányi 
) , across the world, is a very rare family name. The surname Kosztolányi is characteristic of Eastern Europe, particularly Hungary, where it is a rare surname, and Czechia. Very seldom, Kosztolányi is the forename as well as the last name.
| györgy kosztolányi (b. 1431) |
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| kosztolányi lászló generalmajor (1739-1806), HU (b. 1739) |
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kosztolányi dezső Hungarian poet, writer and translator (1885–1936), HU (b. 1885) |
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kosztolányi dezsőné Hungarian writer, actress (1885–1967), HU (b. 1885) |
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kosztolányi ádám Hungarian writer (1915–1980), HU (b. 1915) |
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kosztolányi györgy HU (b. 1942) |
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| balázs kosztolányi actor (1948-2012) (b. 1948) |
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| kosztolányi dénes Hungarian politician, HU (b. 1949) |
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| kosztolányi kamilla Hungarian rower, HU (b. 1956) |
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| andrás kosztolányi researcher |
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| alexander kosztolányi |
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| lajos kosztolányi |
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Erik, Enikő, Evelin, Zsuzsa, Ádám, Ágnes, Mariann, Szilvia, Adrienn, Balázs, Bálint, Dániel, Lukáš, Tomáš, Nándor, István, Ildikó, Zoltán, Eszter, Tímea, Tamás, Gábor, Éva, Anita, Bence, Pavel, Petra, Peťo, Dezső, Jenő, László, Erika, Martin, Mária, Máté, Silvia, Andrea, Attila, Diána, Dávid, Fanni, and Krisztián