Family name Kocakaya (Kocakaya 
) , in all the world, is a common cognomen. The family name Kocakaya is characteristic of Turkey, where it is quite a common surname, Germany, where it is a rare surname, and Belgium. Measured by absolute frequency, the name is most common in Turkey, Germany, and France.
| VARIANT | COUNTRY |
|---|---|
| Kocakaya | Turkey, Germany, China, Belgium, France |
| servet kocakaya Turkish musician, TR (b. 1973) |
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| z. kocakaya botanist |
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| afsin kocakaya researcher |
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| hanife kocakaya researcher (ORCID 0000-0002-5907-3808) |
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| deniz kocakaya Turkish association football player, TR (b. 1987) |
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| mustafa kocakaya |
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