Family name Demirbilek (Demirbilek 
, Демирбилек 
) , across the world, is quite a rare surname. The cognomen Demirbilek is characteristic of Cyprus, where it is quite a rare surname, Turkey, where it is a rare surname, and Austria. Not in comparison with a country's population, it is the most numerous in Turkey, Germany, and France.
| VARIANT | COUNTRY |
|---|---|
| Demirbilek | Turkey, Germany, Austria, United States, France |
| Демирбилек | Russia |
Demirbılek, Demırbilek, Demırbılek, and Демірбілек
| nedim demirbilek association football player, TR (b. 1964) |
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| huseyin demirbilek researcher |
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| oya demirbilek researcher |
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| murat demirbilek researcher |
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| yasemin demirbilek researcher (ORCID 0000-0002-0688-9926) |
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| ebrar demirbilek Turkish child actress, TR |
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